Individual Study / Helander et al.; J Med Internet Res. 2014

Factors Related to Sustained Use of a Free Mobile App for Dietary Self-Monitoring With Photography and Peer Feedback

Factors Related to Sustained Use of a Free Mobile App for Dietary Self-Monitoring With Photography and Peer Feedback

Initiatives -
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
  • 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

Selection Criteria
Newborns
Twins
Countries
  • United States of America
  • Finland
Ethnic Origin
Health Status

Recruitment

Sources of recruitment
  • General population

Number of participants

Number of participants
189,770
Number of participants with biosamples
Data Collection Event
Start Date
2011-10
End Date
2012-04
Data sources
  • Mobile data collection
    • Smartphone apps