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

• 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.

Nyckelord

Cellular phone; Epidemiological methods; Exercise; Internet; Questionnaires

MEDICINE

MEDICIN

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