Abstract
An investigation in a randomized population-based Swedish study with 564 participants aged 18–80 years showed that mean physical activity levels obtained using short message service (SMS) by means of cell phones (n = 171) were equal to corresponding levels obtained when sending identical questions by web (n = 182) or paper (n = 211). The response rates were similar for the SMS, web and paper groups.
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Abbreviations
- PAL:
-
Physical activity level
- SMS:
-
Short message service
- BMI:
-
Body mass index
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Acknowledgments
The authors would like to thank all study participants, Åsa Neij for help with data collection as well as Johan Cederlund and Jan Fjellström for help with the web and cell phone application. This work was supported by the Swedish Research Council (2008-4322), and Karolinska Institutet.
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The authors declare that they have no conflict of interest.
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Lagerros, Y.T., Sandin, S., Bexelius, C. et al. Estimating physical activity using a cell phone questionnaire sent by means of short message service (SMS): a randomized population-based study. Eur J Epidemiol 27, 561–566 (2012). https://doi.org/10.1007/s10654-012-9708-4
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DOI: https://doi.org/10.1007/s10654-012-9708-4