Published on in Vol 13, No 3 (2011): Jul-Sep

Estimation of Physical Activity Levels Using Cell Phone Questionnaires: A Comparison With Accelerometry for Evaluation of Between-Subject and Within-Subject Variations

Estimation of Physical Activity Levels Using Cell Phone Questionnaires: A Comparison With Accelerometry for Evaluation of Between-Subject and Within-Subject Variations

Estimation of Physical Activity Levels Using Cell Phone Questionnaires: A Comparison With Accelerometry for Evaluation of Between-Subject and Within-Subject Variations

Christin Bexelius 1, PhD;  Sven Sandin 1, MSc;  Ylva Trolle Lagerros 2, MD PhD;  Jan-Eric Litton 1, PhD;  Marie Löf 1, 3, PhD

1 Department of Medical Epidemiology and Biostatistics, Karolinska Institutet , Stockholm , SE

2 Unit of Clinical Epidemiology, Department of Medicine, Karolinska Institutet , Stockholm , SE

3 Department of Clinical and Experimental Medicine, University of Linköping , Linköping , SE

Corresponding Author:

  • Marie Löf, PhD
  • Department of Medical Epidemiology and Biostatistics, Karolinska Institutet
  • PO 281
  • Stockholm
  • SE
  • Phone: 46 101034486
  • Email: marie.lof@ki.se