Factors Related to Sustained Use of a Free Mobile App for Dietary Self-Monitoring With Photography and Peer Feedback
Initiatives
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The aim of the study was to assess the factors related to sustained use of a free mobile app ("The Eatery") that promotes healthy eating through photographic dietary self-monitoring and peer feedback.
Note: All published information has been collected from the article referenced in the Marker Paper box below. Therefore, there may be variations with more advanced versions of the study.
- Start Year
- 2011
- End Year
- 2012
- Funding
- This work was partially supported by the SalWe Research Program for Mind and Body (Tekes-the Finnish Funding Agency for Technology and Innovation grant 1104/10).
Design
- Study design
- Population cohort
Marker Paper
Helander E, Kaipainen K, Korhonen I, Wansink B. Factors related to sustained use of a free mobile app for dietary self-monitoring with photography and peer feedback: retrospective cohort study. J Med Internet Res. 2014;16(4):e109. Published 2014 Apr 15. doi:10.2196/jmir.3084
PUBMED 24735567
Recruitment
- Sources of Recruitment
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- Individuals
Number of participants
- Number of participants
- 189,770
- Number of participants with biosamples
Access
Availability of data and biosamples
Data | |
Biosamples | |
Other |
Timeline
people who had downloaded the app
A retrospective analysis was conducted on the sample of 189,770 people who had downloaded the app and used it at least once between October 2011 and April 2012.
Selection Criteria
- Newborns
- Twins
- Countries
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- United States of America
- Finland
- Ethnic Origin
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- Health Status
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Recruitment
- Sources of recruitment
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- General population
Number of participants
- Number of participants
- 189,770
- Number of participants with biosamples
Data Collection Event
A retrospective analysis was conducted on the sample of 189,770 people who had downloaded the app and used it at least once between October 2011 and April 2012. Adherence was defined based on frequency and duration of self-monitoring. People who had taken more than one picture were classified as “Users” and people with one or no pictures as “Dropouts”. Users who had taken at least 10 pictures and used the app for at least one week were classified as “Actives”, Users with 2-9 pictures as “Semi-actives”, and Dropouts with one picture as “Non-actives”
- Start Date
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2011-10
- End Date
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2012-04
- Data sources
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Mobile data collection
- Smartphone apps
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Mobile data collection