Trial Outcomes & Findings for Exploring Changes in COVID-19 Vaccination Intentions by Prompting Altruistic Motives Using a Video Intervention (NCT NCT04960228)
NCT ID: NCT04960228
Last Updated: 2022-02-21
Results Overview
Vaccine intentions are measured using one item: "Which of the following best describes your thoughts about a COVID-19 vaccine?". Participants will then indicate their vaccine intention stage, adapted from the Precaution Adoption Process Model (PAPM): I have not thought about receiving the COVID-19 vaccine, I am undecided about receiving the COVID-19 vaccine, I do not want to receive the COVID-19 vaccine, and I do want to receive the COVID-19 vaccine. Participants will answer this item before (pre) and after (post) the intervention has been administered, all within the same survey.
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
2097 participants
Primary outcome timeframe
Pre-post intervention, within the same survey. The length of the survey is projected to be about 10 minutes.
Results posted on
2022-02-21
Participant Flow
Recruitment took place from July 30th to September 13th, 2021. All recruitment took place online through the survey company Dynata.
14,298 participants began the survey. Exclusion occurred during a screening item to ensure participants audio/video (1396 excluded) was working for the study, and by assessing inclusion/exclusion criteria (9752 excluded). Additionally, 238 participants did not consent to participate, and 815 dropped out before randomization.
Participant milestones
| Measure |
Altruism Video Intervention
Participants will watch a 3-minute video about COVID-19 vaccination that elicits altruistic motives. The role of this arm is to test whether altruistic themes are an effective way to promote COVID-19 vaccination amongst young people and whether a video format is preferable for this group.
Altruism Video: The video provides three vignettes about a diverse set of people who may be more vulnerable to serious health consequences from COVID-19. In each of the stories, high vaccine uptake of those around these vulnerable individuals serves to protect them. This communicates that getting the COVID-19 vaccine can be done for prosocial reasons and to foster a sense of community, as it provides protection not only to oneself, but also to others.
|
Informational Text Intervention
Participants will read a brief informational text including information drawn from the Public Health Agency of Canada website (https://www.canada.ca/en/public-health/services/diseases/2019-novel-coronavirus-infection/prevention-risks.html#self). The purpose of this arm is to provide an active comparator with information about COVID-19 preventative health behaviors that has been strongly recommended to the public since the beginning of the pandemic. By doing this, we will assess if the video intervention changes vaccination intentions more than a presentation of general, well-known COVID-19 related information.
COVID-19 Informational Text: The topics included in the text are how COVID-19 spreads, hygiene, physical distancing, and travel restrictions. Participants will complete three comprehension questions, one after each of the following sections: hygiene, physical distancing, and travel restrictions.
|
|---|---|---|
|
Overall Study
STARTED
|
1098
|
999
|
|
Overall Study
COMPLETED
|
810
|
813
|
|
Overall Study
NOT COMPLETED
|
288
|
186
|
Reasons for withdrawal
| Measure |
Altruism Video Intervention
Participants will watch a 3-minute video about COVID-19 vaccination that elicits altruistic motives. The role of this arm is to test whether altruistic themes are an effective way to promote COVID-19 vaccination amongst young people and whether a video format is preferable for this group.
Altruism Video: The video provides three vignettes about a diverse set of people who may be more vulnerable to serious health consequences from COVID-19. In each of the stories, high vaccine uptake of those around these vulnerable individuals serves to protect them. This communicates that getting the COVID-19 vaccine can be done for prosocial reasons and to foster a sense of community, as it provides protection not only to oneself, but also to others.
|
Informational Text Intervention
Participants will read a brief informational text including information drawn from the Public Health Agency of Canada website (https://www.canada.ca/en/public-health/services/diseases/2019-novel-coronavirus-infection/prevention-risks.html#self). The purpose of this arm is to provide an active comparator with information about COVID-19 preventative health behaviors that has been strongly recommended to the public since the beginning of the pandemic. By doing this, we will assess if the video intervention changes vaccination intentions more than a presentation of general, well-known COVID-19 related information.
COVID-19 Informational Text: The topics included in the text are how COVID-19 spreads, hygiene, physical distancing, and travel restrictions. Participants will complete three comprehension questions, one after each of the following sections: hygiene, physical distancing, and travel restrictions.
|
|---|---|---|
|
Overall Study
Withdrawal by Subject
|
216
|
35
|
|
Overall Study
Failed attention check
|
69
|
148
|
|
Overall Study
Flagged for response quality by Dynata
|
3
|
3
|
Baseline Characteristics
The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
Baseline characteristics by cohort
| Measure |
Altruism Video Intervention
n=686 Participants
Participants will watch a 3-minute video about COVID-19 vaccination that elicits altruistic motives. The role of this arm is to test whether altruistic themes are an effective way to promote COVID-19 vaccination amongst young people and whether a video format is preferable for this group.
Altruism Video: The video provides three vignettes about a diverse set of people who may be more vulnerable to serious health consequences from COVID-19. In each of the stories, high vaccine uptake of those around these vulnerable individuals serves to protect them. This communicates that getting the COVID-19 vaccine can be done for prosocial reasons and to foster a sense of community, as it provides protection not only to oneself, but also to others.
|
Informational Text Intervention
n=687 Participants
Participants will read a brief informational text including information drawn from the Public Health Agency of Canada website (https://www.canada.ca/en/public-health/services/diseases/2019-novel-coronavirus-infection/prevention-risks.html#self). The purpose of this arm is to provide an active comparator with information about COVID-19 preventative health behaviors that has been strongly recommended to the public since the beginning of the pandemic. By doing this, we will assess if the video intervention changes vaccination intentions more than a presentation of general, well-known COVID-19 related information.
COVID-19 Informational Text: The topics included in the text are how COVID-19 spreads, hygiene, physical distancing, and travel restrictions. Participants will complete three comprehension questions, one after each of the following sections: hygiene, physical distancing, and travel restrictions.
|
Total
n=1373 Participants
Total of all reporting groups
|
|---|---|---|---|
|
Age, Continuous
|
30.7 years
STANDARD_DEVIATION 5.4 • n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
30.7 years
STANDARD_DEVIATION 5.3 • n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
30.7 years
STANDARD_DEVIATION 5.3 • n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Sex: Female, Male
Female
|
370 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
370 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
740 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Sex: Female, Male
Male
|
316 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
317 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
633 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · North American Aboriginal (e.g., First Nations, Inuit, Metis)
|
62 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
45 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
107 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · Other North American (e.g., Canadian, American, Ontarian, Quebecois, Acadian)
|
301 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
331 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
632 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · European (e.g., British, French, Western European, Eastern European)
|
158 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
156 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
314 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · Caribbean (e.g., Cuban, Haitian, Jamaican)
|
33 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
23 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
56 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · Latin, Central and South American (e.g., Mexican, Argentinian, Brazilian, Chilean)
|
16 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
14 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
30 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · African (e.g., Central and West African, North African, Southern Africa)
|
30 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
30 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
60 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · Asian (e.g., West Central Asian, South Asian, East and Southeast Asian)
|
42 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
42 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
84 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · Oceania (e.g., Australian, New Zealander, Pacific Islander)
|
0 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
2 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
2 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Race/Ethnicity, Customized
Ethnicity (Statistics Canada) · Other (free response)
|
44 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
44 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
88 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Alberta
|
106 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
105 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
211 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · British Columbia
|
67 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
70 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
137 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Manitoba
|
33 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
27 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
60 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · New Brunswick
|
10 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
22 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
32 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Newfoundland and Labrador
|
14 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
17 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
31 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Nova Scotia
|
14 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
22 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
36 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Nunavet
|
1 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
2 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
3 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Ontario
|
376 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
345 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
721 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Prince Edward Island
|
2 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
4 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
6 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Quebec
|
43 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
49 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
92 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Saskatchewan
|
19 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
24 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
43 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
Region of Enrollment
Canada · Yukon
|
1 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
0 Participants
n=7 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
1 Participants
n=5 Participants • The number analyzed were those who completed the full survey, passed the in-survey attention checks, and were retained during post-hoc data cleaning methods (outlying survey response times, straight-lined responses).
|
|
COVID-19 Vaccine Intentions Pre-Intervention
Unengaged
|
74 Participants
n=5 Participants
|
73 Participants
n=7 Participants
|
147 Participants
n=5 Participants
|
|
COVID-19 Vaccine Intentions Pre-Intervention
Undecided
|
234 Participants
n=5 Participants
|
255 Participants
n=7 Participants
|
489 Participants
n=5 Participants
|
|
COVID-19 Vaccine Intentions Pre-Intervention
Decided Not
|
292 Participants
n=5 Participants
|
272 Participants
n=7 Participants
|
564 Participants
n=5 Participants
|
|
COVID-19 Vaccine Intentions Pre-Intervention
Decided To
|
86 Participants
n=5 Participants
|
87 Participants
n=7 Participants
|
173 Participants
n=5 Participants
|
PRIMARY outcome
Timeframe: Pre-post intervention, within the same survey. The length of the survey is projected to be about 10 minutes.Population: Canadian residents aged 20-39 who had not received any dose of a COVID-19 vaccine at the time of recruitment.
Vaccine intentions are measured using one item: "Which of the following best describes your thoughts about a COVID-19 vaccine?". Participants will then indicate their vaccine intention stage, adapted from the Precaution Adoption Process Model (PAPM): I have not thought about receiving the COVID-19 vaccine, I am undecided about receiving the COVID-19 vaccine, I do not want to receive the COVID-19 vaccine, and I do want to receive the COVID-19 vaccine. Participants will answer this item before (pre) and after (post) the intervention has been administered, all within the same survey.
Outcome measures
| Measure |
Altruism Video Intervention
n=686 Participants
Participants will watch a 3-minute video about COVID-19 vaccination that elicits altruistic motives. The role of this arm is to test whether altruistic themes are an effective way to promote COVID-19 vaccination amongst young people and whether a video format is preferable for this group.
Altruism Video: The video provides three vignettes about a diverse set of people who may be more vulnerable to serious health consequences from COVID-19. In each of the stories, high vaccine uptake of those around these vulnerable individuals serves to protect them. This communicates that getting the COVID-19 vaccine can be done for prosocial reasons and to foster a sense of community, as it provides protection not only to oneself, but also to others.
|
Informational Text Intervention
n=687 Participants
Participants will read a brief informational text including information drawn from the Public Health Agency of Canada website (https://www.canada.ca/en/public-health/services/diseases/2019-novel-coronavirus-infection/prevention-risks.html#self). The purpose of this arm is to provide an active comparator with information about COVID-19 preventative health behaviors that has been strongly recommended to the public since the beginning of the pandemic. By doing this, we will assess if the video intervention changes vaccination intentions more than a presentation of general, well-known COVID-19 related information.
COVID-19 Informational Text: The topics included in the text are how COVID-19 spreads, hygiene, physical distancing, and travel restrictions. Participants will complete three comprehension questions, one after each of the following sections: hygiene, physical distancing, and travel restrictions.
|
|---|---|---|
|
Post Intervention Vaccine Intentions
Unengaged
|
54 Participants
|
47 Participants
|
|
Post Intervention Vaccine Intentions
Undecided
|
236 Participants
|
249 Participants
|
|
Post Intervention Vaccine Intentions
Decided Not
|
277 Participants
|
285 Participants
|
|
Post Intervention Vaccine Intentions
Decided To
|
119 Participants
|
106 Participants
|
Adverse Events
Altruism Video Intervention
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Informational Text Intervention
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
Ben Haward, Research Assistant
Lady Davis Institute for Medical Research
Phone: 514-340-8222
Email: [email protected]
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place