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Eur J Epidemiol. 2012 Jul;27(7):561-6. doi: 10.1007/s10654-012-9708-4. Epub 2012 Jun 29.

Estimating physical activity using a cell phone questionnaire sent by means of short message service (SMS): a randomized population-based study.

Author information

1
Clinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.

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.

PMID:
22744733
DOI:
10.1007/s10654-012-9708-4
[Indexed for MEDLINE]

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