Trial Outcomes & Findings for COVID-19 Vaccination Take-Up (NCT NCT04867174)
NCT ID: NCT04867174
Last Updated: 2024-03-28
Results Overview
Percent of the population with at least one COVID-19 vaccination
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
2701 participants
Primary outcome timeframe
1 month
Results posted on
2024-03-28
Participant Flow
This is a cross randomization design. Subjects were randomized equally to control (no message) or an emotional message, a safety/effectiveness message or a consequence message. Each message arm was further randomized to financial incentives \[50%\] vs. no financial incentives \[50%\], with 25% randomized to a $10 incentive and 25% to a $50 incentive Each arm further randomized to receive a convenient scheduling link highlighted \[50%\] vs. not \[50%\].
Participant milestones
| Measure |
Control Arm
No messaging about COVID-19 vaccination
|
Emotional Message
Participants view an emotional video from the state of California about getting back to normal.
|
Safety Message; Discordant Gender and Race
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Race and gender of messenger were discordant with the participant.
|
Consequences Message; Discordant Gender and Race
Participants view a video with information about the consequences of not getting vaccinated against COVID-19.
Race and gender of messenger was discordant with the participant.
|
Safety Message; Gender Concordant, Race Discordant
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender concordant but race discordant messenger.
|
Consequences Message; Gender Concordant, Race Discordant
Participants view a video with information about the consequences of not getting vaccinated against COVID-19; gender concordant but race discordant messenger.
|
Safety Message; Gender Discordant and Race Concordant
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender discordant but race concordant messenger.
|
Consequences Message; Gender Discordant and Race Concordant
Participants view a video with information about the consequences of not getting vaccinated against COVID-19; gender discordant but race concordant messenger.
|
Safety Message; Gender and Race Concordant
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender and race concordant messenger.
|
Consequences Message; Gender and Race Concordant
Participants view a video with information about the consequences of not getting vaccinated against COVID-19; gender and race concordant messenger.
|
Link
Participants receive a link at the end of the survey to an easy vaccination scheduling system.
|
Link and Emotional Message
Participants get a link and view the emotional message about getting back to normal.
|
Link and Safety Message; Gender and Race Discordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger.
|
Link and Consequences Message; Gender and Race Discordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger.
|
Link; Safety Message; Gender Concordant and Race Discordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger.
|
Link; Consequences Message; Gender Concordant and Race Discordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender concordant and race discordant messenger.
|
Link; Safety Message; Gender Discordant and Race Concordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender discordant and race concordant messenger.
|
Link; Consequences Message; Gender Discordant and Race Concordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender discordant and race concordant messenger.
|
Link; Safety Message; Gender and Race Concordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger.
|
Link and Consequences Message; Gender and Race Concordant
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger.
|
$10 Financial Incentive
Participants offered a $10 financial incentive for vaccination.
|
$10 Financial Incentive; Emotional Message
Participants offered a $10 financial incentive for getting vaccinated and view an emotional video from the state of California about getting back to normal.
|
$10 Financial Incentive; Safety Message; Gender and Race Discordant
Participants offered a $10 financial incentive for vaccination and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender and race discordant messenger
|
$10 Financial Incentive; Consequences Message; Gender and Race Discordant
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19; gender and race discordant messenger.
|
$10 Financial Incentive; Safety Message; Gender Concordant and Race Discordant
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender concordant but race discordant messenger.
|
$10 Financial Incentive; Consequences Message; Gender Concordant and Race Discordant
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19; gender concordant but race discordant messenger.
|
$10 Financial Incentive; Safety Message; Gender Discordant and Race Concordant
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender discordant but race concordant messenger.
|
$10 Financial Incentive; Consequences Message; Gender Discordant and Race Concordant
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19; gender discordant but race concordant messenger.
|
$10 Financial Incentive; Safety Message; Gender and Race Concordant
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender and race concordant messenger.
|
$10 Financial Incentive; Consequences Message; Gender and Race Concordant
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger.
|
$10 Financial Incentive; Link
Participants offered a $10 financial incentive and an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Emotion Message
Participants offered a $10 financial incentive, a video message about getting back to normal, and an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender and Race Discordant
Participants offered a $10 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
Participants offered a $10 financial incentive, view a video with information about the consequences of not getting vaccination with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
Participants offered a $10 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
Participants offered a $10 financial incentive, view a video with information about the consequences of not getting vaccinated with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender discordant and race concordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
Participants offered a $10 financial incentive, view a video with information about the consequences of not getting vaccinated with a gender discordant and race concordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender and Race Concordant
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger and provided an easy vaccination scheduling link
|
$50 Financial Incentive
Participants offered a $50 financial incentive
|
$50 Financial Incentive; Emotional Message
Participants offered a $50 financial incentive for getting vaccinated and view an emotional video from the state of California about getting back to normal.
|
$50 Financial Incentive; Safety Message; Gender and Race Discordant
Participants offered a $10 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender and Race Discordant
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger.
|
$50 Financial Incentive; Safety Message; Gender Concordant and Race Discordant
Participants offered a $50 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender Concordant and Race Discordant
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender concordant and race discordant messenger.
|
$50 Financial Incentive; Safety Message; Gender Discordant and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender discordant and race concordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender Discordant and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender discordant and race concordant messenger.
|
$50 Financial Incentive; Safety Message; Gender and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger.
|
$50 Financial Incentive; Link
Participants offered a $50 financial incentive for getting vaccinated and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Emotion Message
Participants offered a $50 financial incentive for getting vaccinated, view an emotional video from the state of California about getting back to normal and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Safety Message, Gender and Race Discordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a discordant gender and race concordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
50 Financial Incentive; Link; Safety Message, Gender and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger and provided an easy vaccination scheduling link.
|
50 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger and provided an easy vaccination scheduling link.
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Overall Study
STARTED
|
136
|
137
|
29
|
37
|
32
|
31
|
43
|
33
|
39
|
35
|
147
|
122
|
30
|
31
|
30
|
23
|
35
|
34
|
34
|
27
|
113
|
103
|
27
|
22
|
30
|
24
|
33
|
28
|
17
|
32
|
117
|
100
|
20
|
19
|
28
|
15
|
22
|
22
|
24
|
18
|
112
|
120
|
28
|
18
|
26
|
33
|
21
|
20
|
21
|
23
|
104
|
99
|
28
|
23
|
27
|
26
|
19
|
30
|
20
|
24
|
|
Overall Study
COMPLETED
|
136
|
137
|
29
|
37
|
32
|
31
|
43
|
33
|
39
|
35
|
147
|
122
|
30
|
31
|
30
|
23
|
35
|
34
|
34
|
27
|
113
|
103
|
27
|
22
|
30
|
24
|
33
|
28
|
17
|
32
|
117
|
100
|
20
|
19
|
28
|
15
|
22
|
22
|
24
|
18
|
112
|
120
|
28
|
18
|
26
|
33
|
21
|
20
|
21
|
23
|
104
|
99
|
28
|
23
|
27
|
26
|
19
|
30
|
20
|
24
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
COVID-19 Vaccination Take-Up
Baseline characteristics by cohort
| Measure |
Control Arm
n=136 Participants
No messaging about COVID-19 vaccination
|
Emotional Message
n=137 Participants
Participants view an emotional video from the state of California about getting back to normal.
|
Safety Message; Discordant Gender and Race
n=29 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Race and gender of messenger were discordant with the participant.
|
Consequences Message; Discordant Gender and Race
n=37 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Race and gender of messenger was discordant with the participant.
|
Safety Message; Gender Concordant, Race Discordant
n=32 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender concordant but race discordant messenger.
|
Consequences Message; Gender Concordant, Race Discordant
n=31 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19; gender concordant but race discordant messenger.
|
Safety Message; Gender Discordant and Race Concordant
n=43 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender discordant but race concordant messenger.
|
Consequences Message; Gender Discordant and Race Concordant
n=33 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19; gender discordant but race concordant messenger.
|
Safety Message; Gender and Race Concordant
n=39 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender and race concordant messenger.
|
Consequences Message; Gender and Race Concordant
n=35 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19; gender and race concordant messenger.
|
Link
n=147 Participants
Participants receive a link at the end of the survey to an easy vaccination scheduling system.
|
Link and Emotional Message
n=122 Participants
Participants get a link and view the emotional message about getting back to normal.
|
Link and Safety Message; Gender and Race Discordant
n=30 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger.
|
Link and Consequences Message; Gender and Race Discordant
n=31 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger.
|
Link; Safety Message; Gender Concordant and Race Discordant
n=30 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger.
|
Link; Consequences Message; Gender Concordant and Race Discordant
n=23 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender concordant and race discordant messenger.
|
Link; Safety Message; Gender Discordant and Race Concordant
n=35 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender discordant and race concordant messenger.
|
Link; Consequences Message; Gender Discordant and Race Concordant
n=34 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender discordant and race concordant messenger.
|
Link; Safety Message; Gender and Race Concordant
n=34 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger.
|
Link and Consequences Message; Gender and Race Concordant
n=27 Participants
Participants receive a link to the easy vaccination scheduling system. Prior to this, participants view a video the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger.
|
$10 Financial Incentive
n=113 Participants
Participants offered a $10 financial incentive for vaccination.
|
$10 Financial Incentive; Emotional Message
n=103 Participants
Participants offered a $10 financial incentive for getting vaccinated and view an emotional video from the state of California about getting back to normal.
|
$10 Financial Incentive; Safety Message; Gender and Race Discordant
n=27 Participants
Participants offered a $10 financial incentive for vaccination and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender and race discordant messenger
|
$10 Financial Incentive; Consequences Message; Gender and Race Discordant
n=22 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19; gender and race discordant messenger.
|
$10 Financial Incentive; Safety Message; Gender Concordant and Race Discordant
n=30 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender concordant but race discordant messenger.
|
$10 Financial Incentive; Consequences Message; Gender Concordant and Race Discordant
n=24 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19; gender concordant but race discordant messenger.
|
$10 Financial Incentive; Safety Message; Gender Discordant and Race Concordant
n=33 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender discordant but race concordant messenger.
|
$10 Financial Incentive; Consequences Message; Gender Discordant and Race Concordant
n=28 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19; gender discordant but race concordant messenger.
|
$10 Financial Incentive; Safety Message; Gender and Race Concordant
n=17 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines; gender and race concordant messenger.
|
$10 Financial Incentive; Consequences Message; Gender and Race Concordant
n=32 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger.
|
$10 Financial Incentive; Link
n=117 Participants
Participants offered a $10 financial incentive and an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Emotion Message
n=100 Participants
Participants offered a $10 financial incentive, a video message about getting back to normal, and an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender and Race Discordant
n=20 Participants
Participants offered a $10 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
n=19 Participants
Participants offered a $10 financial incentive, view a video with information about the consequences of not getting vaccination with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
n=28 Participants
Participants offered a $10 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
n=15 Participants
Participants offered a $10 financial incentive, view a video with information about the consequences of not getting vaccinated with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
n=22 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender discordant and race concordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
n=22 Participants
Participants offered a $10 financial incentive, view a video with information about the consequences of not getting vaccinated with a gender discordant and race concordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Safety Message, Gender and Race Concordant
n=24 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger and provided an easy vaccination scheduling link.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
n=18 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger and provided an easy vaccination scheduling link
|
$50 Financial Incentive
n=112 Participants
Participants offered a $50 financial incentive
|
$50 Financial Incentive; Emotional Message
n=120 Participants
Participants offered a $50 financial incentive for getting vaccinated and view an emotional video from the state of California about getting back to normal.
|
$50 Financial Incentive; Safety Message; Gender and Race Discordant
n=28 Participants
Participants offered a $10 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender and Race Discordant
n=18 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger.
|
$50 Financial Incentive; Safety Message; Gender Concordant and Race Discordant
n=26 Participants
Participants offered a $50 financial incentive, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender Concordant and Race Discordant
n=33 Participants
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender concordant and race discordant messenger.
|
$50 Financial Incentive; Safety Message; Gender Discordant and Race Concordant
n=21 Participants
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender discordant and race concordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender Discordant and Race Concordant
n=20 Participants
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender discordant and race concordant messenger.
|
$50 Financial Incentive; Safety Message; Gender and Race Concordant
n=21 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger.
|
$50 Financial Incentive; Consequences Message; Gender and Race Concordant
n=23 Participants
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger.
|
$50 Financial Incentive; Link
n=104 Participants
Participants offered a $50 financial incentive for getting vaccinated and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Emotion Message
n=99 Participants
Participants offered a $50 financial incentive for getting vaccinated, view an emotional video from the state of California about getting back to normal and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Safety Message, Gender and Race Discordant
n=28 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
n=23 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
n=27 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
n=26 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender concordant and race discordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
n=19 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a discordant gender and race concordant messenger and provided an easy vaccination scheduling link.
|
$50 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
n=30 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race discordant messenger and provided an easy vaccination scheduling link.
|
50 Financial Incentive; Link; Safety Message, Gender and Race Concordant
n=20 Participants
Participants offered a $50 financial incentive for getting vaccinated, view a video with information about the safety and effectiveness of the COVID-19 vaccines with a gender and race concordant messenger and provided an easy vaccination scheduling link.
|
50 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
n=24 Participants
Participants offered a $50 financial incentive for getting vaccinated and view a video with information about the consequences of not getting vaccinated against COVID-19 with a gender and race concordant messenger and provided an easy vaccination scheduling link.
|
Total
n=2701 Participants
Total of all reporting groups
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Age, Continuous
|
36.91 years
STANDARD_DEVIATION 11.73 • n=5 Participants
|
34.82 years
STANDARD_DEVIATION 12.53 • n=7 Participants
|
37.31 years
STANDARD_DEVIATION 14.70 • n=5 Participants
|
39.32 years
STANDARD_DEVIATION 14.42 • n=4 Participants
|
34.69 years
STANDARD_DEVIATION 10.20 • n=21 Participants
|
36.65 years
STANDARD_DEVIATION 13.57 • n=10 Participants
|
40.74 years
STANDARD_DEVIATION 14.39 • n=115 Participants
|
40.30 years
STANDARD_DEVIATION 14.58 • n=24 Participants
|
39.33 years
STANDARD_DEVIATION 14.80 • n=42 Participants
|
37.46 years
STANDARD_DEVIATION 10.07 • n=42 Participants
|
36.29 years
STANDARD_DEVIATION 12.03 • n=42 Participants
|
38.37 years
STANDARD_DEVIATION 13.96 • n=42 Participants
|
35.87 years
STANDARD_DEVIATION 13.05 • n=36 Participants
|
34.03 years
STANDARD_DEVIATION 13.44 • n=36 Participants
|
35.50 years
STANDARD_DEVIATION 9.31 • n=24 Participants
|
37.39 years
STANDARD_DEVIATION 12.90 • n=135 Participants
|
34.54 years
STANDARD_DEVIATION 13.54 • n=136 Participants
|
34.15 years
STANDARD_DEVIATION 10.43 • n=44 Participants
|
35.32 years
STANDARD_DEVIATION 10.31 • n=667 Participants
|
39.11 years
STANDARD_DEVIATION 12.81 • n=7 Participants
|
36.53 years
STANDARD_DEVIATION 12.51 • n=6 Participants
|
33.83 years
STANDARD_DEVIATION 9.98 • n=10 Participants
|
38.11 years
STANDARD_DEVIATION 17.34 • n=14 Participants
|
34.14 years
STANDARD_DEVIATION 10.52 • n=4 Participants
|
35.30 years
STANDARD_DEVIATION 12.80 • n=4 Participants
|
36.79 years
STANDARD_DEVIATION 12.73 • n=4 Participants
|
35.42 years
STANDARD_DEVIATION 12.75 • n=26 Participants
|
35.14 years
STANDARD_DEVIATION 12.62 • n=12 Participants
|
32.12 years
STANDARD_DEVIATION 13.26 • n=206 Participants
|
37.97 years
STANDARD_DEVIATION 13.63 • n=12 Participants
|
37.15 years
STANDARD_DEVIATION 12.92 • n=12 Participants
|
33.99 years
STANDARD_DEVIATION 11.31 • n=12 Participants
|
35.15 years
STANDARD_DEVIATION 16.52 • n=384 Participants
|
29.63 years
STANDARD_DEVIATION 5.85 • n=23 Participants
|
36.18 years
STANDARD_DEVIATION 11.10 • n=116 Participants
|
32.80 years
STANDARD_DEVIATION 9.99 • n=15 Participants
|
33.64 years
STANDARD_DEVIATION 12.03 • n=22 Participants
|
34.77 years
STANDARD_DEVIATION 9.01 • n=22 Participants
|
38.33 years
STANDARD_DEVIATION 14.61 • n=24 Participants
|
39.67 years
STANDARD_DEVIATION 15.14 • n=18 Participants
|
37.51 years
STANDARD_DEVIATION 12.28 • n=112 Participants
|
36.87 years
STANDARD_DEVIATION 12.98 • n=120 Participants
|
32.43 years
STANDARD_DEVIATION 10.02 • n=28 Participants
|
39.78 years
STANDARD_DEVIATION 13.52 • n=18 Participants
|
34.27 years
STANDARD_DEVIATION 11.53 • n=26 Participants
|
40.64 years
STANDARD_DEVIATION 13.85 • n=33 Participants
|
33.76 years
STANDARD_DEVIATION 11.10 • n=21 Participants
|
37.45 years
STANDARD_DEVIATION 14.27 • n=20 Participants
|
42.43 years
STANDARD_DEVIATION 16.74 • n=21 Participants
|
34.35 years
STANDARD_DEVIATION 13.84 • n=23 Participants
|
35.88 years
STANDARD_DEVIATION 11.63 • n=104 Participants
|
37.93 years
STANDARD_DEVIATION 12.10 • n=99 Participants
|
36.50 years
STANDARD_DEVIATION 10.73 • n=28 Participants
|
33.70 years
STANDARD_DEVIATION 11.74 • n=23 Participants
|
37.59 years
STANDARD_DEVIATION 14.13 • n=27 Participants
|
38.12 years
STANDARD_DEVIATION 14.02 • n=26 Participants
|
37.74 years
STANDARD_DEVIATION 14.96 • n=19 Participants
|
35.50 years
STANDARD_DEVIATION 12.22 • n=30 Participants
|
36.85 years
STANDARD_DEVIATION 12.49 • n=20 Participants
|
37.63 years
STANDARD_DEVIATION 12.04 • n=24 Participants
|
36.44 years
STANDARD_DEVIATION 12.57 • n=2701 Participants
|
|
Sex: Female, Male
Female
|
99 Participants
n=5 Participants
|
97 Participants
n=7 Participants
|
23 Participants
n=5 Participants
|
27 Participants
n=4 Participants
|
25 Participants
n=21 Participants
|
26 Participants
n=10 Participants
|
29 Participants
n=115 Participants
|
24 Participants
n=24 Participants
|
30 Participants
n=42 Participants
|
27 Participants
n=42 Participants
|
110 Participants
n=42 Participants
|
83 Participants
n=42 Participants
|
17 Participants
n=36 Participants
|
26 Participants
n=36 Participants
|
22 Participants
n=24 Participants
|
18 Participants
n=135 Participants
|
29 Participants
n=136 Participants
|
22 Participants
n=44 Participants
|
25 Participants
n=667 Participants
|
20 Participants
n=7 Participants
|
81 Participants
n=6 Participants
|
75 Participants
n=10 Participants
|
17 Participants
n=14 Participants
|
20 Participants
n=4 Participants
|
23 Participants
n=4 Participants
|
16 Participants
n=4 Participants
|
26 Participants
n=26 Participants
|
18 Participants
n=12 Participants
|
10 Participants
n=206 Participants
|
23 Participants
n=12 Participants
|
85 Participants
n=12 Participants
|
77 Participants
n=12 Participants
|
15 Participants
n=384 Participants
|
16 Participants
n=23 Participants
|
23 Participants
n=116 Participants
|
13 Participants
n=15 Participants
|
17 Participants
n=22 Participants
|
19 Participants
n=22 Participants
|
19 Participants
n=24 Participants
|
14 Participants
n=18 Participants
|
88 Participants
n=112 Participants
|
91 Participants
n=120 Participants
|
21 Participants
n=28 Participants
|
14 Participants
n=18 Participants
|
19 Participants
n=26 Participants
|
26 Participants
n=33 Participants
|
15 Participants
n=21 Participants
|
19 Participants
n=20 Participants
|
13 Participants
n=21 Participants
|
15 Participants
n=23 Participants
|
85 Participants
n=104 Participants
|
70 Participants
n=99 Participants
|
19 Participants
n=28 Participants
|
15 Participants
n=23 Participants
|
25 Participants
n=27 Participants
|
18 Participants
n=26 Participants
|
12 Participants
n=19 Participants
|
25 Participants
n=30 Participants
|
12 Participants
n=20 Participants
|
19 Participants
n=24 Participants
|
2007 Participants
n=2701 Participants
|
|
Sex: Female, Male
Male
|
37 Participants
n=5 Participants
|
40 Participants
n=7 Participants
|
6 Participants
n=5 Participants
|
10 Participants
n=4 Participants
|
7 Participants
n=21 Participants
|
5 Participants
n=10 Participants
|
14 Participants
n=115 Participants
|
9 Participants
n=24 Participants
|
9 Participants
n=42 Participants
|
8 Participants
n=42 Participants
|
37 Participants
n=42 Participants
|
39 Participants
n=42 Participants
|
13 Participants
n=36 Participants
|
5 Participants
n=36 Participants
|
8 Participants
n=24 Participants
|
5 Participants
n=135 Participants
|
6 Participants
n=136 Participants
|
12 Participants
n=44 Participants
|
9 Participants
n=667 Participants
|
7 Participants
n=7 Participants
|
32 Participants
n=6 Participants
|
28 Participants
n=10 Participants
|
10 Participants
n=14 Participants
|
2 Participants
n=4 Participants
|
7 Participants
n=4 Participants
|
8 Participants
n=4 Participants
|
7 Participants
n=26 Participants
|
10 Participants
n=12 Participants
|
7 Participants
n=206 Participants
|
9 Participants
n=12 Participants
|
32 Participants
n=12 Participants
|
23 Participants
n=12 Participants
|
5 Participants
n=384 Participants
|
3 Participants
n=23 Participants
|
5 Participants
n=116 Participants
|
2 Participants
n=15 Participants
|
5 Participants
n=22 Participants
|
3 Participants
n=22 Participants
|
5 Participants
n=24 Participants
|
4 Participants
n=18 Participants
|
24 Participants
n=112 Participants
|
29 Participants
n=120 Participants
|
7 Participants
n=28 Participants
|
4 Participants
n=18 Participants
|
7 Participants
n=26 Participants
|
7 Participants
n=33 Participants
|
6 Participants
n=21 Participants
|
1 Participants
n=20 Participants
|
8 Participants
n=21 Participants
|
8 Participants
n=23 Participants
|
19 Participants
n=104 Participants
|
29 Participants
n=99 Participants
|
9 Participants
n=28 Participants
|
8 Participants
n=23 Participants
|
2 Participants
n=27 Participants
|
8 Participants
n=26 Participants
|
7 Participants
n=19 Participants
|
5 Participants
n=30 Participants
|
8 Participants
n=20 Participants
|
5 Participants
n=24 Participants
|
694 Participants
n=2701 Participants
|
|
Race/Ethnicity, Customized
White (non-Hispanic)
|
55 Participants
n=5 Participants
|
43 Participants
n=7 Participants
|
15 Participants
n=5 Participants
|
10 Participants
n=4 Participants
|
13 Participants
n=21 Participants
|
12 Participants
n=10 Participants
|
19 Participants
n=115 Participants
|
11 Participants
n=24 Participants
|
11 Participants
n=42 Participants
|
14 Participants
n=42 Participants
|
44 Participants
n=42 Participants
|
41 Participants
n=42 Participants
|
10 Participants
n=36 Participants
|
13 Participants
n=36 Participants
|
12 Participants
n=24 Participants
|
11 Participants
n=135 Participants
|
12 Participants
n=136 Participants
|
16 Participants
n=44 Participants
|
12 Participants
n=667 Participants
|
12 Participants
n=7 Participants
|
40 Participants
n=6 Participants
|
33 Participants
n=10 Participants
|
9 Participants
n=14 Participants
|
7 Participants
n=4 Participants
|
13 Participants
n=4 Participants
|
12 Participants
n=4 Participants
|
11 Participants
n=26 Participants
|
7 Participants
n=12 Participants
|
5 Participants
n=206 Participants
|
12 Participants
n=12 Participants
|
42 Participants
n=12 Participants
|
34 Participants
n=12 Participants
|
2 Participants
n=384 Participants
|
3 Participants
n=23 Participants
|
8 Participants
n=116 Participants
|
5 Participants
n=15 Participants
|
8 Participants
n=22 Participants
|
7 Participants
n=22 Participants
|
12 Participants
n=24 Participants
|
8 Participants
n=18 Participants
|
47 Participants
n=112 Participants
|
47 Participants
n=120 Participants
|
10 Participants
n=28 Participants
|
6 Participants
n=18 Participants
|
7 Participants
n=26 Participants
|
14 Participants
n=33 Participants
|
6 Participants
n=21 Participants
|
6 Participants
n=20 Participants
|
9 Participants
n=21 Participants
|
8 Participants
n=23 Participants
|
38 Participants
n=104 Participants
|
39 Participants
n=99 Participants
|
8 Participants
n=28 Participants
|
9 Participants
n=23 Participants
|
3 Participants
n=27 Participants
|
8 Participants
n=26 Participants
|
8 Participants
n=19 Participants
|
8 Participants
n=30 Participants
|
9 Participants
n=20 Participants
|
5 Participants
n=24 Participants
|
959 Participants
n=2701 Participants
|
|
Race/Ethnicity, Customized
Black (non-Hispanic)
|
39 Participants
n=5 Participants
|
51 Participants
n=7 Participants
|
7 Participants
n=5 Participants
|
16 Participants
n=4 Participants
|
7 Participants
n=21 Participants
|
9 Participants
n=10 Participants
|
7 Participants
n=115 Participants
|
11 Participants
n=24 Participants
|
12 Participants
n=42 Participants
|
11 Participants
n=42 Participants
|
52 Participants
n=42 Participants
|
37 Participants
n=42 Participants
|
7 Participants
n=36 Participants
|
5 Participants
n=36 Participants
|
6 Participants
n=24 Participants
|
9 Participants
n=135 Participants
|
9 Participants
n=136 Participants
|
7 Participants
n=44 Participants
|
10 Participants
n=667 Participants
|
11 Participants
n=7 Participants
|
32 Participants
n=6 Participants
|
33 Participants
n=10 Participants
|
8 Participants
n=14 Participants
|
5 Participants
n=4 Participants
|
7 Participants
n=4 Participants
|
9 Participants
n=4 Participants
|
6 Participants
n=26 Participants
|
14 Participants
n=12 Participants
|
5 Participants
n=206 Participants
|
10 Participants
n=12 Participants
|
34 Participants
n=12 Participants
|
32 Participants
n=12 Participants
|
11 Participants
n=384 Participants
|
10 Participants
n=23 Participants
|
10 Participants
n=116 Participants
|
4 Participants
n=15 Participants
|
8 Participants
n=22 Participants
|
7 Participants
n=22 Participants
|
3 Participants
n=24 Participants
|
4 Participants
n=18 Participants
|
39 Participants
n=112 Participants
|
30 Participants
n=120 Participants
|
6 Participants
n=28 Participants
|
7 Participants
n=18 Participants
|
11 Participants
n=26 Participants
|
12 Participants
n=33 Participants
|
4 Participants
n=21 Participants
|
4 Participants
n=20 Participants
|
7 Participants
n=21 Participants
|
8 Participants
n=23 Participants
|
33 Participants
n=104 Participants
|
31 Participants
n=99 Participants
|
10 Participants
n=28 Participants
|
9 Participants
n=23 Participants
|
6 Participants
n=27 Participants
|
5 Participants
n=26 Participants
|
4 Participants
n=19 Participants
|
13 Participants
n=30 Participants
|
4 Participants
n=20 Participants
|
6 Participants
n=24 Participants
|
824 Participants
n=2701 Participants
|
|
Race/Ethnicity, Customized
Hispanic or Latino
|
42 Participants
n=5 Participants
|
43 Participants
n=7 Participants
|
7 Participants
n=5 Participants
|
11 Participants
n=4 Participants
|
12 Participants
n=21 Participants
|
10 Participants
n=10 Participants
|
17 Participants
n=115 Participants
|
11 Participants
n=24 Participants
|
16 Participants
n=42 Participants
|
10 Participants
n=42 Participants
|
51 Participants
n=42 Participants
|
44 Participants
n=42 Participants
|
13 Participants
n=36 Participants
|
13 Participants
n=36 Participants
|
12 Participants
n=24 Participants
|
3 Participants
n=135 Participants
|
14 Participants
n=136 Participants
|
11 Participants
n=44 Participants
|
12 Participants
n=667 Participants
|
4 Participants
n=7 Participants
|
41 Participants
n=6 Participants
|
37 Participants
n=10 Participants
|
10 Participants
n=14 Participants
|
10 Participants
n=4 Participants
|
10 Participants
n=4 Participants
|
3 Participants
n=4 Participants
|
16 Participants
n=26 Participants
|
7 Participants
n=12 Participants
|
7 Participants
n=206 Participants
|
10 Participants
n=12 Participants
|
41 Participants
n=12 Participants
|
34 Participants
n=12 Participants
|
7 Participants
n=384 Participants
|
6 Participants
n=23 Participants
|
10 Participants
n=116 Participants
|
6 Participants
n=15 Participants
|
6 Participants
n=22 Participants
|
8 Participants
n=22 Participants
|
9 Participants
n=24 Participants
|
6 Participants
n=18 Participants
|
26 Participants
n=112 Participants
|
43 Participants
n=120 Participants
|
12 Participants
n=28 Participants
|
5 Participants
n=18 Participants
|
8 Participants
n=26 Participants
|
7 Participants
n=33 Participants
|
11 Participants
n=21 Participants
|
10 Participants
n=20 Participants
|
5 Participants
n=21 Participants
|
7 Participants
n=23 Participants
|
33 Participants
n=104 Participants
|
29 Participants
n=99 Participants
|
10 Participants
n=28 Participants
|
5 Participants
n=23 Participants
|
8 Participants
n=27 Participants
|
13 Participants
n=26 Participants
|
7 Participants
n=19 Participants
|
9 Participants
n=30 Participants
|
7 Participants
n=20 Participants
|
13 Participants
n=24 Participants
|
908 Participants
n=2701 Participants
|
PRIMARY outcome
Timeframe: 1 monthPopulation: This is a cross randomization design. Subjects were randomized equally to control (no message) or an emotional message, a safety/effectiveness message or a consequence message. Each of these arms was interacted with a financial incentive of $10 or $50 and, separately, with a convenient link to a vaccine appointment scheduling system. In practice, this means there are 60 arms. See protocol for details. Since it's not feasible to show all arms concisely, we report details by message arm.
Percent of the population with at least one COVID-19 vaccination
Outcome measures
| Measure |
Control Arm
n=136 Participants
Control, no videos, financial incentives or scheduling link.
|
Emotional Message
n=137 Participants
Participants view an emotional video from the state of California about getting back to normal.
|
Safety Message; Discordant Gender and Race
n=29 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger has discordant Gender and Race.
|
Consequences Message; Discordant Gender and Race
n=37 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Participant has discordant gender and race with messenger.
|
Safety Message; Gender Concordant, Race Discordant
n=32 Participants
Participants view a video with info about safety and effectiveness of the vaccines. Messenger and Participant are Gender concordant but race discordant.
|
Consequences Message; Gender Concordant and Race Discordant
n=31 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Participant has concordant gender but discordant race with messenger.
|
Safety Message; Gender Discordant and Race Concordant
n=43 Participants
Participants view a video with info about safety and effectiveness of the vaccines. Messenger and Participant are Gender discordant but race concordant.
|
Consequences Message; Gender Discordant and Race Concordant
n=33 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Participant has discordant gender but concordant race with messenger.
|
Safety Message; Concordant Gender and Race
n=39 Participants
Participants view a video with info about safety and effectiveness of the vaccines. Messenger and Participant are Gender and race concordant.
|
Consequences Message; Concordant Gender and Race
n=35 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Messenger and participant have concordant gender and race.
|
Link
n=147 Participants
Participants receive a link at the end of the survey to an easy vaccine scheduling system.
|
Link and Emotional Message
n=122 Participants
Participants receive an easy vaccine scheduling link and view an emotional video from the state of California about getting back to normal.
|
Link and Safety Message; Gender and Race Discordant
n=30 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger has discordant Gender and Race. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender and Race Discordant
n=31 Participants
Participants view a video about the consequences of not getting vaccinated. Messenger has discordant Gender and Race. Also receive link to an easy vaccine scheduling tool.
|
Link and Safety Message; Gender Concordant and Race Discordant
n=30 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender concordant and Race discordant. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender Concordant and Race Discordant
n=23 Participants
Participants view a video with information about the consequences of not getting vaccinated Messenger and Participant are Gender concordant and Race discordant. Receive link to easy vaccine scheduling tool.
|
Link and Safety Message; Gender Discordant and Race Concordant
n=35 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Discordant and Race Concordant. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender Discordant and Race Concordant
n=34 Participants
Participants view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant. Receive link to easy vaccine scheduling tool.
|
Link and Safety Message; Gender and Race Concordant
n=34 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race concordant. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender and Race Concordant
n=27 Participants
Participants view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race concordant. Receive link to easy vaccine scheduling tool.
|
$10 Financial Incentive
n=113 Participants
Participants offered a $10 financial incentive for vaccination.
|
$10 Financial Incentive; Emotional Message
n=103 Participants
Participants offered $10 financial incentive for vaccination and view an emotional video from the state of California about getting back to normal.
|
$10 Financial Incentive and Safety Message; Gender and Race Discordant
n=27 Participants
Participants offered a $10 incentive for vaccination and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive and Consequences Message; Gender and Race Discordant
n=22 Participants
Participants offered a $10 vaccination incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive and Safety Message; Gender Concordant and Race Discordant
n=30 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race discordant.
|
$10 Financial Incentive and Consequences Message; Gender Concordant and Race Discordant
n=24 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Concordant and Race discordant.
|
$10 Financial Incentive and Safety Message; Gender Discordant and Race Concordant
n=33 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive and Consequences Message; Gender Discordant and Race Concordant
n=28 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive and Safety Message; Gender and Race Concordant
n=17 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race Concordant.
|
$10 Financial Incentive and Consequences Message; Gender and Race Concordant
n=32 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$10 Financial Incentive; Link
n=117 Participants
Participant offered a $10 financial incentive for vaccination and given a link to an easy vaccination scheduling system.
|
$10 Financial Incentive; Link; Emotional Message
n=100 Participants
Participants offered a $10 financial incentive for vaccination and view an emotional video from the state of California about getting back to normal.
|
$10 Financial Incentive; Link; Safety Message; Gender and Race Discordant
n=20 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
n=19 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
n=28 Participants
Participants offered a $10 financial incentive, given a link to an easy vaccination scheduling system and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race Discordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
n=15 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Concordant and Race discordant.
|
$10 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
n=22 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
n=22 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive; Link; Safety Message, Gender and Race Concordant
n=24 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
n=18 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$50 Financial Incentive
n=112 Participants
Participants offered a $50 financial incentive for vaccination.
|
$50 Financial Incentive; Emotional Message
n=120 Participants
Participants offered a $50 financial incentive for vaccination; view an emotional video from the state of California about getting back to normal.
|
$50 Financial Incentive; Safety Message; Gender and Race Discordant
n=28 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Consequences Message; Gender and Race Discordant
n=18 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Safety Message; Gender Concordant and Race Discordant
n=26 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race discordant.
|
$50 Financial Incentive; Consequences Message; Gender Concordant and Race Discordant
n=33 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Concordant and Race discordant.
|
$50 Financial Incentive; Safety Message; Gender Discordant and Race Concordant
n=21 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender discordant and Race concordant.
|
$50 Financial Incentive; Consequences Message; Gender Discordant and Race Concordant
n=20 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender discordant and Race concordant.
|
$50 Financial Incentive; Safety Message; Gender and Race Concordant
n=21 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race concordant.
|
$50 Financial Incentive; Consequences Message; Gender and Race Concordant
n=23 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$50 Financial Incentive; Link
n=104 Participants
Participant offered a $50 financial incentive for vaccination and given a link to an easy vaccination scheduling system.
|
$50 Financial Incentive; Link; Emotional Message
n=99 Participants
Participants offered $50 financial incentive for vaccination; receive an easy vaccine scheduling link and view an emotional video from the state of California about getting back to normal.
|
$50 Financial Incentive; Link; Safety Message, Gender and Race Discordant
n=28 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. They receive a link to an easy vaccination scheduling system. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
n=23 Participants
Participants offered a $50 financial incentive and given a link to an easy vaccine scheduling system. Participants view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
n=27 Participants
Participant offered a $50 financial incentive for vaccination and given a link to an easy vaccination scheduling system. They view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race discordant.
|
$50 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
n=26 Participants
Participants offered a $50 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender concordant and Race discordant.
|
$50 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
n=19 Participants
Participants offered a $50 financial incentive, given a link to an easy vaccination scheduling system and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender discordant and Race concordant.
|
$50 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
n=30 Participants
Participants offered a $50 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender discordant and Race concordant.
|
50 Financial Incentive; Link; Safety Message, Gender and Race Concordant
n=20 Participants
Participants offered a $50 financial incentive, given a link to an easy vaccination scheduling system and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race concordant.
|
50 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
n=24 Participants
Participants offered a $50 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race concordant.
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Rate of COVID-19 Vaccination at 1 Month
Number of Particpants who Received Vaccine
|
12 Participants
|
4 Participants
|
0 Participants
|
1 Participants
|
2 Participants
|
3 Participants
|
3 Participants
|
3 Participants
|
3 Participants
|
3 Participants
|
15 Participants
|
17 Participants
|
2 Participants
|
1 Participants
|
3 Participants
|
2 Participants
|
2 Participants
|
2 Participants
|
4 Participants
|
1 Participants
|
10 Participants
|
5 Participants
|
3 Participants
|
2 Participants
|
3 Participants
|
1 Participants
|
3 Participants
|
0 Participants
|
1 Participants
|
3 Participants
|
9 Participants
|
6 Participants
|
0 Participants
|
1 Participants
|
2 Participants
|
1 Participants
|
0 Participants
|
1 Participants
|
3 Participants
|
1 Participants
|
6 Participants
|
13 Participants
|
9 Participants
|
1 Participants
|
3 Participants
|
4 Participants
|
1 Participants
|
0 Participants
|
1 Participants
|
1 Participants
|
4 Participants
|
9 Participants
|
2 Participants
|
1 Participants
|
0 Participants
|
4 Participants
|
0 Participants
|
1 Participants
|
2 Participants
|
2 Participants
|
|
Rate of COVID-19 Vaccination at 1 Month
Number of Participants who did not Receive Vaccine
|
124 Participants
|
133 Participants
|
29 Participants
|
36 Participants
|
30 Participants
|
28 Participants
|
40 Participants
|
30 Participants
|
36 Participants
|
32 Participants
|
132 Participants
|
105 Participants
|
28 Participants
|
30 Participants
|
27 Participants
|
21 Participants
|
33 Participants
|
32 Participants
|
30 Participants
|
26 Participants
|
103 Participants
|
98 Participants
|
24 Participants
|
20 Participants
|
27 Participants
|
23 Participants
|
30 Participants
|
28 Participants
|
16 Participants
|
29 Participants
|
108 Participants
|
94 Participants
|
20 Participants
|
18 Participants
|
26 Participants
|
14 Participants
|
22 Participants
|
21 Participants
|
21 Participants
|
17 Participants
|
106 Participants
|
107 Participants
|
19 Participants
|
17 Participants
|
23 Participants
|
29 Participants
|
20 Participants
|
20 Participants
|
20 Participants
|
22 Participants
|
100 Participants
|
90 Participants
|
26 Participants
|
22 Participants
|
27 Participants
|
22 Participants
|
19 Participants
|
29 Participants
|
18 Participants
|
22 Participants
|
OTHER_PRE_SPECIFIED outcome
Timeframe: 30 daysPopulation: This is a cross randomization design. Subjects were randomized equally to control (no message) or an emotional message, a safety/effectiveness message or a consequence message. Each ofthese arms was interacted with a fi nancial incentive of $10 or $50 and, separately, with a convenient link to a vaccine appointment scheduling system. In practice, this means there are 60 arms.See protocol for details
Stated intention of receiving COVID-19 vaccination in the next 30 days (0% - 100% probability)
Outcome measures
| Measure |
Control Arm
n=136 Participants
Control, no videos, financial incentives or scheduling link.
|
Emotional Message
n=137 Participants
Participants view an emotional video from the state of California about getting back to normal.
|
Safety Message; Discordant Gender and Race
n=29 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger has discordant Gender and Race.
|
Consequences Message; Discordant Gender and Race
n=37 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Participant has discordant gender and race with messenger.
|
Safety Message; Gender Concordant, Race Discordant
n=32 Participants
Participants view a video with info about safety and effectiveness of the vaccines. Messenger and Participant are Gender concordant but race discordant.
|
Consequences Message; Gender Concordant and Race Discordant
n=31 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Participant has concordant gender but discordant race with messenger.
|
Safety Message; Gender Discordant and Race Concordant
n=43 Participants
Participants view a video with info about safety and effectiveness of the vaccines. Messenger and Participant are Gender discordant but race concordant.
|
Consequences Message; Gender Discordant and Race Concordant
n=33 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Participant has discordant gender but concordant race with messenger.
|
Safety Message; Concordant Gender and Race
n=39 Participants
Participants view a video with info about safety and effectiveness of the vaccines. Messenger and Participant are Gender and race concordant.
|
Consequences Message; Concordant Gender and Race
n=35 Participants
Participants view a video with information about the consequences of not getting vaccinated against COVID-19. Messenger and participant have concordant gender and race.
|
Link
n=147 Participants
Participants receive a link at the end of the survey to an easy vaccine scheduling system.
|
Link and Emotional Message
n=122 Participants
Participants receive an easy vaccine scheduling link and view an emotional video from the state of California about getting back to normal.
|
Link and Safety Message; Gender and Race Discordant
n=30 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger has discordant Gender and Race. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender and Race Discordant
n=31 Participants
Participants view a video about the consequences of not getting vaccinated. Messenger has discordant Gender and Race. Also receive link to an easy vaccine scheduling tool.
|
Link and Safety Message; Gender Concordant and Race Discordant
n=30 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender concordant and Race discordant. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender Concordant and Race Discordant
n=23 Participants
Participants view a video with information about the consequences of not getting vaccinated Messenger and Participant are Gender concordant and Race discordant. Receive link to easy vaccine scheduling tool.
|
Link and Safety Message; Gender Discordant and Race Concordant
n=35 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Discordant and Race Concordant. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender Discordant and Race Concordant
n=34 Participants
Participants view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant. Receive link to easy vaccine scheduling tool.
|
Link and Safety Message; Gender and Race Concordant
n=34 Participants
Participants view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race concordant. Receive link to easy vaccine scheduling tool.
|
Link and Consequences Message; Gender and Race Concordant
n=27 Participants
Participants view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race concordant. Receive link to easy vaccine scheduling tool.
|
$10 Financial Incentive
n=113 Participants
Participants offered a $10 financial incentive for vaccination.
|
$10 Financial Incentive; Emotional Message
n=103 Participants
Participants offered $10 financial incentive for vaccination and view an emotional video from the state of California about getting back to normal.
|
$10 Financial Incentive and Safety Message; Gender and Race Discordant
n=27 Participants
Participants offered a $10 incentive for vaccination and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive and Consequences Message; Gender and Race Discordant
n=22 Participants
Participants offered a $10 vaccination incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive and Safety Message; Gender Concordant and Race Discordant
n=30 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race discordant.
|
$10 Financial Incentive and Consequences Message; Gender Concordant and Race Discordant
n=24 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Concordant and Race discordant.
|
$10 Financial Incentive and Safety Message; Gender Discordant and Race Concordant
n=33 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive and Consequences Message; Gender Discordant and Race Concordant
n=28 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive and Safety Message; Gender and Race Concordant
n=17 Participants
Participants offered a $10 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race Concordant.
|
$10 Financial Incentive and Consequences Message; Gender and Race Concordant
n=32 Participants
Participants offered a $10 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$10 Financial Incentive; Link
n=117 Participants
Participant offered a $10 financial incentive for vaccination and given a link to an easy vaccination scheduling system.
|
$10 Financial Incentive; Link; Emotional Message
n=100 Participants
Participants offered a $10 financial incentive for vaccination and view an emotional video from the state of California about getting back to normal.
|
$10 Financial Incentive; Link; Safety Message; Gender and Race Discordant
n=20 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
n=19 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$10 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
n=28 Participants
Participants offered a $10 financial incentive, given a link to an easy vaccination scheduling system and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race Discordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
n=15 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Concordant and Race discordant.
|
$10 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
n=22 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
n=22 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Discordant and Race Concordant.
|
$10 Financial Incentive; Link; Safety Message, Gender and Race Concordant
n=24 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$10 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
n=18 Participants
Participants offered a $10 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$50 Financial Incentive
n=112 Participants
Participants offered a $50 financial incentive for vaccination.
|
$50 Financial Incentive; Emotional Message
n=120 Participants
Participants offered a $50 financial incentive for vaccination; view an emotional video from the state of California about getting back to normal.
|
$50 Financial Incentive; Safety Message; Gender and Race Discordant
n=28 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Consequences Message; Gender and Race Discordant
n=18 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Safety Message; Gender Concordant and Race Discordant
n=26 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race discordant.
|
$50 Financial Incentive; Consequences Message; Gender Concordant and Race Discordant
n=33 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender Concordant and Race discordant.
|
$50 Financial Incentive; Safety Message; Gender Discordant and Race Concordant
n=21 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender discordant and Race concordant.
|
$50 Financial Incentive; Consequences Message; Gender Discordant and Race Concordant
n=20 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender discordant and Race concordant.
|
$50 Financial Incentive; Safety Message; Gender and Race Concordant
n=21 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race concordant.
|
$50 Financial Incentive; Consequences Message; Gender and Race Concordant
n=23 Participants
Participants offered a $50 financial incentive and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race Concordant.
|
$50 Financial Incentive; Link
n=104 Participants
Participant offered a $50 financial incentive for vaccination and given a link to an easy vaccination scheduling system.
|
$50 Financial Incentive; Link; Emotional Message
n=99 Participants
Participants offered $50 financial incentive for vaccination; receive an easy vaccine scheduling link and view an emotional video from the state of California about getting back to normal.
|
$50 Financial Incentive; Link; Safety Message, Gender and Race Discordant
n=28 Participants
Participants offered a $50 financial incentive and view a video with information about the safety and effectiveness of the COVID-19 vaccines. They receive a link to an easy vaccination scheduling system. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Link; Consequences Message, Gender and Race Discordant
n=23 Participants
Participants offered a $50 financial incentive and given a link to an easy vaccine scheduling system. Participants view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race discordant.
|
$50 Financial Incentive; Link; Safety Message, Gender Concordant and Race Discordant
n=27 Participants
Participant offered a $50 financial incentive for vaccination and given a link to an easy vaccination scheduling system. They view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender Concordant and Race discordant.
|
$50 Financial Incentive; Link; Consequences Message, Gender Concordant and Race Discordant
n=26 Participants
Participants offered a $50 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender concordant and Race discordant.
|
$50 Financial Incentive; Link; Safety Message, Gender Discordant and Race Concordant
n=19 Participants
Participants offered a $50 financial incentive, given a link to an easy vaccination scheduling system and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender discordant and Race concordant.
|
$50 Financial Incentive; Link; Consequences Message, Gender Discordant and Race Concordant
n=30 Participants
Participants offered a $50 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender discordant and Race concordant.
|
50 Financial Incentive; Link; Safety Message, Gender and Race Concordant
n=20 Participants
Participants offered a $50 financial incentive, given a link to an easy vaccination scheduling system and view a video with information about the safety and effectiveness of the COVID-19 vaccines. Messenger and Participant are Gender and Race concordant.
|
50 Financial Incentive; Link; Consequences Message, Gender and Race Concordant
n=24 Participants
Participants offered a $50 financial incentive for vaccination; receive link to easy vaccine scheduling tool and view a video with information about the consequences of not getting vaccinated. Messenger and Participant are Gender and Race concordant.
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Vaccine Intentions
|
34.13 percent probability
Standard Deviation 33.80
|
37.87 percent probability
Standard Deviation 33.85
|
29.31 percent probability
Standard Deviation 31.79
|
46.11 percent probability
Standard Deviation 30.13
|
38.72 percent probability
Standard Deviation 32.19
|
41.61 percent probability
Standard Deviation 30.53
|
40.60 percent probability
Standard Deviation 36.28
|
35.24 percent probability
Standard Deviation 33.88
|
37.36 percent probability
Standard Deviation 37.55
|
48.49 percent probability
Standard Deviation 34.50
|
37.88 percent probability
Standard Deviation 33.48
|
39.34 percent probability
Standard Deviation 31.67
|
42.30 percent probability
Standard Deviation 33.92
|
39.77 percent probability
Standard Deviation 31.81
|
46.07 percent probability
Standard Deviation 30.16
|
40.96 percent probability
Standard Deviation 36.18
|
37.89 percent probability
Standard Deviation 33.10
|
38.76 percent probability
Standard Deviation 38.81
|
31.91 percent probability
Standard Deviation 34.83
|
39.07 percent probability
Standard Deviation 37.83
|
33.02 percent probability
Standard Deviation 31.83
|
34.76 percent probability
Standard Deviation 33.39
|
36.26 percent probability
Standard Deviation 33.22
|
40.86 percent probability
Standard Deviation 28.73
|
49.17 percent probability
Standard Deviation 37.82
|
46.17 percent probability
Standard Deviation 36.27
|
41.24 percent probability
Standard Deviation 31.30
|
42.96 percent probability
Standard Deviation 29.47
|
44.29 percent probability
Standard Deviation 32.14
|
47.63 percent probability
Standard Deviation 31.79
|
35.72 percent probability
Standard Deviation 32.84
|
41.67 percent probability
Standard Deviation 34.33
|
30.25 percent probability
Standard Deviation 26.25
|
32.26 percent probability
Standard Deviation 36.41
|
42.79 percent probability
Standard Deviation 40.32
|
34.87 percent probability
Standard Deviation 24.36
|
35.36 percent probability
Standard Deviation 32.74
|
41.68 percent probability
Standard Deviation 36.42
|
42.29 percent probability
Standard Deviation 38.97
|
45.28 percent probability
Standard Deviation 39.08
|
29.67 percent probability
Standard Deviation 29.39
|
36.12 percent probability
Standard Deviation 32.55
|
48.07 percent probability
Standard Deviation 38.34
|
36.33 percent probability
Standard Deviation 35.22
|
33.38 percent probability
Standard Deviation 28.73
|
50.64 percent probability
Standard Deviation 36.10
|
37.24 percent probability
Standard Deviation 22.78
|
58.15 percent probability
Standard Deviation 31.55
|
42.76 percent probability
Standard Deviation 36.24
|
48.13 percent probability
Standard Deviation 33.91
|
32.32 percent probability
Standard Deviation 31.79
|
33.26 percent probability
Standard Deviation 31.11
|
45.86 percent probability
Standard Deviation 37.32
|
50.70 percent probability
Standard Deviation 30.45
|
31.22 percent probability
Standard Deviation 30.38
|
39.31 percent probability
Standard Deviation 36.02
|
41.11 percent probability
Standard Deviation 35.37
|
38.33 percent probability
Standard Deviation 30.85
|
45.40 percent probability
Standard Deviation 34.78
|
35.75 percent probability
Standard Deviation 30.03
|
Adverse Events
Control Arm
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Emotional Message
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Safety and Effectiveness Message
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Consequences Message
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Professor Mireille Jacobson
University of Southern California
Phone: (213) 740-5156
Email: [email protected]
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place