Trial Outcomes & Findings for Encouraging Healthy and Sustainable Dietary Substitutions (NCT NCT06175026)
NCT ID: NCT06175026
Last Updated: 2024-11-12
Results Overview
Participants will rate each message on perceived message effectiveness (PME) for encouraging participants to make the target dietary substitution. PME will be assessed with 4 items \[the text shown in brackets will be tailored to each substitution\]: 1. How much does this message discourage you from wanting to \[eat beef and pork / drink juice / drink cow's milk / drink sugary drinks\]? 2. How much does this message make \[eating beef and pork, etc.\] seem unpleasant to you? 3. How much does this message make you concerned about the effects of \[eating beef and pork, etc.\]? 4. How much does this message make you want to \[eat chicken or vegetarian options instead of beef and pork, etc.\]? The response options for each item are: 1=Not at all, 2=Very little, 3=Somewhat, 4=Quite a bit, 5=A great deal. Investigators will average responses to these 4 items to create a perceived message effectiveness score. Higher scores indicated higher perceived message effectiveness.
Recruitment status
COMPLETED
Study phase
NA
Target enrollment
1753 participants
Primary outcome timeframe
Survey questions administered after participant viewed each message; overall survey took up to 20 minutes
Results posted on
2024-11-12
Participant Flow
Participant milestones
| Measure |
Health Messages
Messages shown will be related to the health impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Health messages: Participants view messages about the health impacts of certain dietary substitutions.
|
Environment Messages
Messages shown will be related to the environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Environmental messages: Participants view messages about the environmental impacts of certain dietary substitutions.
|
Health and Environment Messages
Messages shown will be related to the health and environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Health and environmental messages: Participants view messages about the health and environmental impacts of certain dietary substitutions.
|
Neutral Messages
Messages shown will be neutral and unrelated to the health or environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Neutral messages: Participants view neutral messages unrelated to the health and environmental impacts of certain dietary substitutions.
|
|---|---|---|---|---|
|
Overall Study
STARTED
|
441
|
446
|
431
|
435
|
|
Overall Study
COMPLETED
|
441
|
446
|
431
|
435
|
|
Overall Study
NOT COMPLETED
|
0
|
0
|
0
|
0
|
Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Encouraging Healthy and Sustainable Dietary Substitutions
Baseline characteristics by cohort
| Measure |
Health Messages
n=437 Participants
Messages shown will be related to the health impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Health messages: Participants view messages about the health impacts of certain dietary substitutions.
|
Environment Messages
n=441 Participants
Messages shown will be related to the environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Environmental messages: Participants view messages about the environmental impacts of certain dietary substitutions.
|
Health and Environment Messages
n=424 Participants
Messages shown will be related to the health and environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Health and environmental messages: Participants view messages about the health and environmental impacts of certain dietary substitutions.
|
Neutral Messages
n=430 Participants
Messages shown will be neutral and unrelated to the health or environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Neutral messages: Participants view neutral messages unrelated to the health and environmental impacts of certain dietary substitutions.
|
Total
n=1732 Participants
Total of all reporting groups
|
|---|---|---|---|---|---|
|
Age, Categorical
<=18 years
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=21 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
437 Participants
n=5 Participants
|
441 Participants
n=7 Participants
|
424 Participants
n=5 Participants
|
430 Participants
n=4 Participants
|
1732 Participants
n=21 Participants
|
|
Age, Categorical
>=65 years
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=21 Participants
|
|
Age, Continuous
|
21.8 years
STANDARD_DEVIATION 2.2 • n=5 Participants
|
22.0 years
STANDARD_DEVIATION 2.3 • n=7 Participants
|
21.9 years
STANDARD_DEVIATION 2.2 • n=5 Participants
|
21.7 years
STANDARD_DEVIATION 2.3 • n=4 Participants
|
21.8 years
STANDARD_DEVIATION 2.2 • n=21 Participants
|
|
Sex/Gender, Customized
Gender · Female
|
226 Participants
n=5 Participants
|
226 Participants
n=7 Participants
|
207 Participants
n=5 Participants
|
215 Participants
n=4 Participants
|
874 Participants
n=21 Participants
|
|
Sex/Gender, Customized
Gender · Male
|
196 Participants
n=5 Participants
|
210 Participants
n=7 Participants
|
207 Participants
n=5 Participants
|
205 Participants
n=4 Participants
|
818 Participants
n=21 Participants
|
|
Sex/Gender, Customized
Gender · Non-binary or another gender
|
15 Participants
n=5 Participants
|
5 Participants
n=7 Participants
|
10 Participants
n=5 Participants
|
10 Participants
n=4 Participants
|
40 Participants
n=21 Participants
|
|
Ethnicity (NIH/OMB)
Hispanic or Latino
|
55 Participants
n=5 Participants
|
60 Participants
n=7 Participants
|
80 Participants
n=5 Participants
|
76 Participants
n=4 Participants
|
271 Participants
n=21 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
382 Participants
n=5 Participants
|
381 Participants
n=7 Participants
|
344 Participants
n=5 Participants
|
354 Participants
n=4 Participants
|
1461 Participants
n=21 Participants
|
|
Ethnicity (NIH/OMB)
Unknown or Not Reported
|
0 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
0 Participants
n=5 Participants
|
0 Participants
n=4 Participants
|
0 Participants
n=21 Participants
|
|
Race (NIH/OMB)
American Indian or Alaska Native
|
6 Participants
n=5 Participants
|
5 Participants
n=7 Participants
|
7 Participants
n=5 Participants
|
11 Participants
n=4 Participants
|
29 Participants
n=21 Participants
|
|
Race (NIH/OMB)
Asian
|
17 Participants
n=5 Participants
|
9 Participants
n=7 Participants
|
17 Participants
n=5 Participants
|
9 Participants
n=4 Participants
|
52 Participants
n=21 Participants
|
|
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
|
2 Participants
n=5 Participants
|
0 Participants
n=7 Participants
|
3 Participants
n=5 Participants
|
1 Participants
n=4 Participants
|
6 Participants
n=21 Participants
|
|
Race (NIH/OMB)
Black or African American
|
55 Participants
n=5 Participants
|
50 Participants
n=7 Participants
|
58 Participants
n=5 Participants
|
56 Participants
n=4 Participants
|
219 Participants
n=21 Participants
|
|
Race (NIH/OMB)
White
|
319 Participants
n=5 Participants
|
332 Participants
n=7 Participants
|
302 Participants
n=5 Participants
|
315 Participants
n=4 Participants
|
1268 Participants
n=21 Participants
|
|
Race (NIH/OMB)
More than one race
|
28 Participants
n=5 Participants
|
30 Participants
n=7 Participants
|
20 Participants
n=5 Participants
|
23 Participants
n=4 Participants
|
101 Participants
n=21 Participants
|
|
Race (NIH/OMB)
Unknown or Not Reported
|
10 Participants
n=5 Participants
|
15 Participants
n=7 Participants
|
17 Participants
n=5 Participants
|
15 Participants
n=4 Participants
|
57 Participants
n=21 Participants
|
|
Region of Enrollment
United States
|
437 participants
n=5 Participants
|
441 participants
n=7 Participants
|
424 participants
n=5 Participants
|
430 participants
n=4 Participants
|
1732 participants
n=21 Participants
|
PRIMARY outcome
Timeframe: Survey questions administered after participant viewed each message; overall survey took up to 20 minutesParticipants will rate each message on perceived message effectiveness (PME) for encouraging participants to make the target dietary substitution. PME will be assessed with 4 items \[the text shown in brackets will be tailored to each substitution\]: 1. How much does this message discourage you from wanting to \[eat beef and pork / drink juice / drink cow's milk / drink sugary drinks\]? 2. How much does this message make \[eating beef and pork, etc.\] seem unpleasant to you? 3. How much does this message make you concerned about the effects of \[eating beef and pork, etc.\]? 4. How much does this message make you want to \[eat chicken or vegetarian options instead of beef and pork, etc.\]? The response options for each item are: 1=Not at all, 2=Very little, 3=Somewhat, 4=Quite a bit, 5=A great deal. Investigators will average responses to these 4 items to create a perceived message effectiveness score. Higher scores indicated higher perceived message effectiveness.
Outcome measures
| Measure |
Health Messages
n=437 Participants
Messages shown will be related to the health impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Health messages: Participants view messages about the health impacts of certain dietary substitutions.
|
Environment Messages
n=441 Participants
Messages shown will be related to the environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Environmental messages: Participants view messages about the environmental impacts of certain dietary substitutions.
|
Health and Environment Messages
n=424 Participants
Messages shown will be related to the health and environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Health and environmental messages: Participants view messages about the health and environmental impacts of certain dietary substitutions.
|
Neutral Messages
n=430 Participants
Messages shown will be neutral and unrelated to the health or environmental impacts of making certain dietary substitutions (replacing beef with chicken and vegetarian entrees; replacing juice with whole fruit; replacing dairy milk with non-dairy milk; replacing sugar-sweetened beverages with water).
Neutral messages: Participants view neutral messages unrelated to the health and environmental impacts of certain dietary substitutions.
|
|---|---|---|---|---|
|
Perceived Message Effectiveness
|
2.94 score on a scale
Standard Deviation .95
|
2.83 score on a scale
Standard Deviation 1.01
|
2.98 score on a scale
Standard Deviation .93
|
1.69 score on a scale
Standard Deviation .98
|
Adverse Events
Health Messages
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Environment Messages
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Health and Environment Messages
Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths
Neutral Messages
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
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place