Building on a Point-of-purchase Intervention to Encourage Healthy Food Choices
1 other identifier
interventional
2,672
1 country
1
Brief Summary
This study builds on the framework of a previously implemented color-coded food labeling intervention in a hospital cafeteria by testing the incremental effectiveness of providing employees with individual feedback and incentives for increasing healthy purchases in a 3-arm randomized controlled trial. The investigators hypothesize that employees assigned to receive feedback will increase healthy purchases more than employees who receive no contact and that employees who receive feedback plus incentives will increase healthy purchases more than those who receive feedback alone.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2012
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 21, 2012
CompletedFirst Posted
Study publicly available on registry
May 23, 2012
CompletedStudy Start
First participant enrolled
September 1, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2013
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2013
CompletedOctober 6, 2015
October 1, 2015
8 months
May 21, 2012
October 2, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Employee purchases of healthy (green-labeled) items
6 months
Secondary Outcomes (1)
Employee purchases of unhealthy (red-labeled) items
6 months
Study Arms (3)
Feedback only
EXPERIMENTALSubjects receive feedback letters about the proportion of green, yellow, and red purchases in the cafeteria per month with comparisons to "all employees" and to the "healthiest employees eaters"
Feedback plus incentives
EXPERIMENTALSubjects receive feedback letters plus small incentives to increase healthy (green-labeled) purchases in the next month
Control group
NO INTERVENTIONInterventions
Subjects receive feedback letters about the proportion of green, yellow, and red purchases in the cafeteria per month with comparisons to "all employees" and to the "healthiest employees eaters"
Subjects receive feedback letters plus small incentives to increase healthy (green-labeled) purchases in the next month
Eligibility Criteria
You may qualify if:
- Employee at Massachusetts General Hospital who uses a cafeteria debit card to pay for cafeteria purchases
You may not qualify if:
- Employees who do not have a cafeteria debit card
- Employees with cafeteria debit card but who use it fewer than 3 times a month for the 3 months prior to start of trial
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Massachusetts General Hospitallead
- Robert Wood Johnson Foundationcollaborator
Study Sites (1)
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Related Publications (1)
Thorndike AN, Riis J, Levy DE. Social norms and financial incentives to promote employees' healthy food choices: A randomized controlled trial. Prev Med. 2016 May;86:12-8. doi: 10.1016/j.ypmed.2016.01.017. Epub 2016 Jan 29.
PMID: 26827617DERIVED
Study Officials
- PRINCIPAL INVESTIGATOR
Anne N Thorndike, MD, MPH
Massachusetts General Hospital
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor of Medicine
Study Record Dates
First Submitted
May 21, 2012
First Posted
May 23, 2012
Study Start
September 1, 2012
Primary Completion
May 1, 2013
Study Completion
May 1, 2013
Last Updated
October 6, 2015
Record last verified: 2015-10