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Building on a Point-of-purchase Intervention to Encourage Healthy Food Choices

Building on a Point-of-purchase Intervention to Encourage Healthy Food Choices

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01604499
Enrollment
2672
Registered
2012-05-23
Start date
2012-09-30
Completion date
2013-05-31
Last updated
2015-10-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Food Labeling

Keywords

Healthy eating, Incentives, Feedback

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.

Interventions

BEHAVIORALFeedback letters

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

BEHAVIORALFeedback plus incentives

Subjects receive feedback letters plus small incentives to increase healthy (green-labeled) purchases in the next month

Sponsors

Robert Wood Johnson Foundation
CollaboratorOTHER
Massachusetts General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Employee at Massachusetts General Hospital who uses a cafeteria debit card to pay for cafeteria purchases

Exclusion criteria

* 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

Design outcomes

Primary

MeasureTime frame
Employee purchases of healthy (green-labeled) items6 months

Secondary

MeasureTime frame
Employee purchases of unhealthy (red-labeled) items6 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026