Trial Outcomes & Findings for Way to Be Active III (Framing Incentives) (NCT NCT02030119)

NCT ID: NCT02030119

Last Updated: 2017-12-02

Results Overview

The primary outcome measure is the mean proportion of participant-days a minimum activity of 7000 steps or more is achieved. Outcomes will be assessed each week for 3 months using incentives followed by 3 months of follow-up without incentives.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

281 participants

Primary outcome timeframe

Throughout the 6 month study

Results posted on

2017-12-02

Participant Flow

One participant randomly assigned to the gain-incentive group was later found to be ineligible due to previous enrollment in another physical activity study. One participant randomly assigned to the lottery-incentive group switched to a phone that was not eligible for use before the study began and therefore did not receive the intervention.

Participant milestones

Participant milestones
Measure
Control
The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved their goal for the prior day. Daily feedback
Gain Framing
Participants will be told that they will earn money for each day they walk at least 7000 steps. Each participant will receive either an email or text message (based on the participant's preference) stating whether or not he/she achieved the goal for the prior day and can collect the earnings. Non-adherent participants will receive messages about how much they would have earned had they met their target step goal. Financial Incentives Daily feedback
Daily Lottery
Each participant will be entered into a lottery daily, but participants will only be eligible to collect their winnings if they walked at least 7000 steps the day before. Participants will receive either an email or text message (based on the participant's preference) stating whether or not they won the lottery and if they met their target step goal. If both occur, the participant will be told how much money he or she won. Non-adherent participants will receive messages about how much they would have won had they met the target step goal. Financial Incentives Daily feedback
Loss Framing
The participants will be told that their account has been credited a certain amount of money for the upcoming 30 days. However, for each day they do not meet their goal of at least 7000 steps, they will lose a small portion of that money. The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved the goal for the prior day. Non-adherent participants will receive messages about how much the participant would have kept had they met the target step goal. Financial Incentives Daily feedback
Overall Study
STARTED
70
70
71
70
Overall Study
COMPLETED
67
68
65
67
Overall Study
NOT COMPLETED
3
2
6
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Control
The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved their goal for the prior day. Daily feedback
Gain Framing
Participants will be told that they will earn money for each day they walk at least 7000 steps. Each participant will receive either an email or text message (based on the participant's preference) stating whether or not he/she achieved the goal for the prior day and can collect the earnings. Non-adherent participants will receive messages about how much they would have earned had they met their target step goal. Financial Incentives Daily feedback
Daily Lottery
Each participant will be entered into a lottery daily, but participants will only be eligible to collect their winnings if they walked at least 7000 steps the day before. Participants will receive either an email or text message (based on the participant's preference) stating whether or not they won the lottery and if they met their target step goal. If both occur, the participant will be told how much money he or she won. Non-adherent participants will receive messages about how much they would have won had they met the target step goal. Financial Incentives Daily feedback
Loss Framing
The participants will be told that their account has been credited a certain amount of money for the upcoming 30 days. However, for each day they do not meet their goal of at least 7000 steps, they will lose a small portion of that money. The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved the goal for the prior day. Non-adherent participants will receive messages about how much the participant would have kept had they met the target step goal. Financial Incentives Daily feedback
Overall Study
Withdrawal by Subject
3
1
5
3
Overall Study
Ineligible (see Pre-assignment Details)
0
1
1
0

Baseline Characteristics

Analysis population (n=279)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control
n=70 Participants
The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved their goal for the prior day. Daily feedback
Gain Framing
n=69 Participants
Participants will be told that they will earn money for each day they walk at least 7000 steps. Each participant will receive either an email or text message (based on the participant's preference) stating whether or not he/she achieved the goal for the prior day and can collect the earnings. Non-adherent participants will receive messages about how much they would have earned had they met their target step goal. Financial Incentives Daily feedback
Daily Lottery
n=70 Participants
Each participant will be entered into a lottery daily, but participants will only be eligible to collect their winnings if they walked at least 7000 steps the day before. Participants will receive either an email or text message (based on the participant's preference) stating whether or not they won the lottery and if they met their target step goal. If both occur, the participant will be told how much money he or she won. Non-adherent participants will receive messages about how much they would have won had they met the target step goal. Financial Incentives Daily feedback
Loss Framing
n=70 Participants
The participants will be told that their account has been credited a certain amount of money for the upcoming 30 days. However, for each day they do not meet their goal of at least 7000 steps, they will lose a small portion of that money. The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved the goal for the prior day. Non-adherent participants will receive messages about how much the participant would have kept had they met the target step goal. Financial Incentives Daily feedback
Total
n=279 Participants
Total of all reporting groups
Age, Continuous
39.4 years of age
STANDARD_DEVIATION 12.2 • n=5 Participants
37.1 years of age
STANDARD_DEVIATION 10.9 • n=7 Participants
40.3 years of age
STANDARD_DEVIATION 11.2 • n=5 Participants
41.9 years of age
STANDARD_DEVIATION 11.6 • n=4 Participants
39.7 years of age
STANDARD_DEVIATION 11.6 • n=21 Participants
Sex: Female, Male
Female
55 Participants
n=5 Participants
55 Participants
n=7 Participants
53 Participants
n=5 Participants
54 Participants
n=4 Participants
217 Participants
n=21 Participants
Sex: Female, Male
Male
15 Participants
n=5 Participants
14 Participants
n=7 Participants
17 Participants
n=5 Participants
16 Participants
n=4 Participants
62 Participants
n=21 Participants
Mean BMI
33.2 kg/m^2
STANDARD_DEVIATION 5.3 • n=5 Participants
32.6 kg/m^2
STANDARD_DEVIATION 4.5 • n=7 Participants
33.1 kg/m^2
STANDARD_DEVIATION 5.6 • n=5 Participants
33.8 kg/m^2
STANDARD_DEVIATION 6.8 • n=4 Participants
33.2 kg/m^2
STANDARD_DEVIATION 5.6 • n=21 Participants
Median physical activity in the past 7 d, MET-min
2568.8 Metabolic equivalent minutes (MET-min)
n=5 Participants • Analysis population (n=279)
2812.2 Metabolic equivalent minutes (MET-min)
n=7 Participants • Analysis population (n=279)
2785.0 Metabolic equivalent minutes (MET-min)
n=5 Participants • Analysis population (n=279)
2764.5 Metabolic equivalent minutes (MET-min)
n=4 Participants • Analysis population (n=279)
2709.3 Metabolic equivalent minutes (MET-min)
n=21 Participants • Analysis population (n=279)
Race/ethnicity
White non-Hispanic
45 Participants
n=5 Participants
41 Participants
n=7 Participants
44 Participants
n=5 Participants
49 Participants
n=4 Participants
179 Participants
n=21 Participants
Race/ethnicity
African American non-Hispanic
16 Participants
n=5 Participants
16 Participants
n=7 Participants
16 Participants
n=5 Participants
13 Participants
n=4 Participants
61 Participants
n=21 Participants
Race/ethnicity
Other non-Hispanic
6 Participants
n=5 Participants
10 Participants
n=7 Participants
7 Participants
n=5 Participants
6 Participants
n=4 Participants
29 Participants
n=21 Participants
Race/ethnicity
Hispanic
3 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
2 Participants
n=4 Participants
10 Participants
n=21 Participants
Education
Less than college
1 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
2 Participants
n=4 Participants
7 Participants
n=21 Participants
Education
Some college
15 Participants
n=5 Participants
15 Participants
n=7 Participants
13 Participants
n=5 Participants
12 Participants
n=4 Participants
55 Participants
n=21 Participants
Education
College graduate
54 Participants
n=5 Participants
52 Participants
n=7 Participants
55 Participants
n=5 Participants
56 Participants
n=4 Participants
217 Participants
n=21 Participants
Marital status
Single
27 Participants
n=5 Participants
26 Participants
n=7 Participants
27 Participants
n=5 Participants
25 Participants
n=4 Participants
105 Participants
n=21 Participants
Marital status
Married
31 Participants
n=5 Participants
31 Participants
n=7 Participants
32 Participants
n=5 Participants
36 Participants
n=4 Participants
130 Participants
n=21 Participants
Marital status
Other
12 Participants
n=5 Participants
12 Participants
n=7 Participants
11 Participants
n=5 Participants
9 Participants
n=4 Participants
44 Participants
n=21 Participants
Annual household income
<$50,000
21 Participants
n=5 Participants
24 Participants
n=7 Participants
24 Participants
n=5 Participants
15 Participants
n=4 Participants
84 Participants
n=21 Participants
Annual household income
$50,000-$100,000
25 Participants
n=5 Participants
32 Participants
n=7 Participants
22 Participants
n=5 Participants
29 Participants
n=4 Participants
108 Participants
n=21 Participants
Annual household income
>$100,000
20 Participants
n=5 Participants
12 Participants
n=7 Participants
20 Participants
n=5 Participants
18 Participants
n=4 Participants
70 Participants
n=21 Participants
Number of Participants with iPhone smartphone
46 Participants
n=5 Participants
43 Participants
n=7 Participants
45 Participants
n=5 Participants
49 Participants
n=4 Participants
183 Participants
n=21 Participants

PRIMARY outcome

Timeframe: Throughout the 6 month study

The primary outcome measure is the mean proportion of participant-days a minimum activity of 7000 steps or more is achieved. Outcomes will be assessed each week for 3 months using incentives followed by 3 months of follow-up without incentives.

Outcome measures

Outcome measures
Measure
Control
n=70 Participants
The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved their goal for the prior day. Daily feedback
Gain Framing
n=69 Participants
Participants will be told that they will earn money for each day they walk at least 7000 steps. Each participant will receive either an email or text message (based on the participant's preference) stating whether or not he/she achieved the goal for the prior day and can collect the earnings. Non-adherent participants will receive messages about how much they would have earned had they met their target step goal. Financial Incentives Daily feedback
Daily Lottery
n=70 Participants
Each participant will be entered into a lottery daily, but participants will only be eligible to collect their winnings if they walked at least 7000 steps the day before. Participants will receive either an email or text message (based on the participant's preference) stating whether or not they won the lottery and if they met their target step goal. If both occur, the participant will be told how much money he or she won. Non-adherent participants will receive messages about how much they would have won had they met the target step goal. Financial Incentives Daily feedback
Loss Framing
n=70 Participants
The participants will be told that their account has been credited a certain amount of money for the upcoming 30 days. However, for each day they do not meet their goal of at least 7000 steps, they will lose a small portion of that money. The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved the goal for the prior day. Non-adherent participants will receive messages about how much the participant would have kept had they met the target step goal. Financial Incentives Daily feedback
Proportion of Days Each Individual Walks 7000 Steps Per Day or More
Intervention
0.30 Proportion of participant-days
Interval 0.22 to 0.37
0.35 Proportion of participant-days
Interval 0.28 to 0.42
0.36 Proportion of participant-days
Interval 0.29 to 0.43
0.45 Proportion of participant-days
Interval 0.38 to 0.52
Proportion of Days Each Individual Walks 7000 Steps Per Day or More
Follow-up
0.24 Proportion of participant-days
Interval 0.18 to 0.31
0.25 Proportion of participant-days
Interval 0.19 to 0.31
0.23 Proportion of participant-days
Interval 0.17 to 0.3
0.30 Proportion of participant-days
Interval 0.24 to 0.37

SECONDARY outcome

Timeframe: Throughout the 6 month study

Secondary outcomes include average number of steps each individual takes per day throughout the 13-week intervention and additional 13-week follow-up periods.

Outcome measures

Outcome measures
Measure
Control
n=70 Participants
The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved their goal for the prior day. Daily feedback
Gain Framing
n=69 Participants
Participants will be told that they will earn money for each day they walk at least 7000 steps. Each participant will receive either an email or text message (based on the participant's preference) stating whether or not he/she achieved the goal for the prior day and can collect the earnings. Non-adherent participants will receive messages about how much they would have earned had they met their target step goal. Financial Incentives Daily feedback
Daily Lottery
n=70 Participants
Each participant will be entered into a lottery daily, but participants will only be eligible to collect their winnings if they walked at least 7000 steps the day before. Participants will receive either an email or text message (based on the participant's preference) stating whether or not they won the lottery and if they met their target step goal. If both occur, the participant will be told how much money he or she won. Non-adherent participants will receive messages about how much they would have won had they met the target step goal. Financial Incentives Daily feedback
Loss Framing
n=70 Participants
The participants will be told that their account has been credited a certain amount of money for the upcoming 30 days. However, for each day they do not meet their goal of at least 7000 steps, they will lose a small portion of that money. The participant will receive either an email or text message (based on the participant's preference) stating whether the participant achieved the goal for the prior day. Non-adherent participants will receive messages about how much the participant would have kept had they met the target step goal. Financial Incentives Daily feedback
Average Number of Steps Per Day
Intervention
5031 Steps per day
Interval 4406.0 to 5656.0
5406 Steps per day
Interval 4799.0 to 6013.0
5251 Steps per day
Interval 4625.0 to 5876.0
5880 Steps per day
Interval 5265.0 to 6497.0
Average Number of Steps Per Day
Follow-up
4539 Steps per day
Interval 3916.0 to 5162.0
4692 Steps per day
Interval 4084.0 to 5301.0
4529 Steps per day
Interval 3901.0 to 5158.0
5065 Steps per day
Interval 4466.0 to 5664.0

Adverse Events

Control

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Gain Framing

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Daily Lottery

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Loss Framing

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

Dr. Mitesh S. Patel

Division of General Internal Medicine, Perelman School of Medicine, University of Pennsylvania

Phone: 215-898-3367

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place