Data Donation as a Method to Measure Physical Activity in Older Adults: Cross-Sectional Web Survey Assessing Consent Rates, Donation Success, and Bias
Our study shows that data donation from smartphones as part of a probability-based web survey of older adults is a feasible alternative for the measurement of PA, especially for iPhone owners younger than 70 years. Limitations relate to nonparticipation which correlates strongly with characteristics of smartphone ownership and comfort with device use. Substantive bias in health and PA outcomes persists for those who donated in comparison with all survey respondents.
Authors
- Florian Keusch (ORCID: https://orcid.org/0000-0003-1002-4092)
- Bella Struminskaya (ORCID: https://orcid.org/0000-0002-5944-8163)
- Joris Mulder (ORCID: https://orcid.org/0000-0003-4863-0936)
- Stein Jongerius
Institutions
- University of Mannheim (DE)
- Utrecht University (NL)
- Tilburg University (NL)
Publication Details
- Journal
- Journal of Medical Internet Research
- Published
- 2025-09-26
- DOI
- https://doi.org/10.2196/69799
- Primary Topic
- Health disparities and outcomes
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Universität Mannheim
- National Institutes of Health