This site became the new ClinicalTrials.gov on June 19th. Learn more.
Show more
ClinicalTrials.gov Menu IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...
ClinicalTrials.gov Menu IMPORTANT: Talk with a trusted healthcare professional before volunteering for a study. Read more...
ClinicalTrials.gov Menu
Give us feedback

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

This study has been completed.
Sponsor:
Collaborator:
Robert Wood Johnson Foundation
Information provided by (Responsible Party):
Anne N. Thorndike, MD, MPH, Massachusetts General Hospital
ClinicalTrials.gov Identifier:
NCT01604499
First received: May 21, 2012
Last updated: October 2, 2015
Last verified: October 2015
May 21, 2012
October 2, 2015
September 2012
May 2013   (Final data collection date for primary outcome measure)
Employee purchases of healthy (green-labeled) items [ Time Frame: 6 months ]
Same as current
Complete list of historical versions of study NCT01604499 on ClinicalTrials.gov Archive Site
Employee purchases of unhealthy (red-labeled) items [ Time Frame: 6 months ]
Same as current
Not Provided
Not Provided
 
Building on a Point-of-purchase Intervention to Encourage Healthy Food Choices
Building on a Point-of-purchase Intervention to Encourage Healthy Food Choices
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.
Not Provided
Interventional
Not Provided
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Food Labeling
  • Behavioral: Feedback 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"
  • Behavioral: Feedback plus incentives
    Subjects receive feedback letters plus small incentives to increase healthy (green-labeled) purchases in the next month
  • Experimental: Feedback only
    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"
    Intervention: Behavioral: Feedback letters
  • Experimental: Feedback plus incentives
    Subjects receive feedback letters plus small incentives to increase healthy (green-labeled) purchases in the next month
    Intervention: Behavioral: Feedback plus incentives
  • No Intervention: Control group
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.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
2672
May 2013
May 2013   (Final data collection date for primary outcome measure)

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
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Yes
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT01604499
2011D004784
No
Not Provided
Not Provided
Anne N. Thorndike, MD, MPH, Massachusetts General Hospital
Massachusetts General Hospital
Robert Wood Johnson Foundation
Principal Investigator: Anne N Thorndike, MD, MPH Massachusetts General Hospital
Massachusetts General Hospital
October 2015

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP