Journal of Clinical Epidemiology
Volume 63, Issue 4 , Pages 435-440, April 2010

Proxy reports of physical activity were valid in older people with and without cognitive impairment

  • Laura E. Middleton

      Affiliations

    • Department of Psychiatry, University of California - San Francisco, San Francisco, CA, USA
    • ,
  • Susan A. Kirkland

      Affiliations

    • Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
    • ,
  • Arnold Mitnitski

      Affiliations

    • Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
    • ,
  • Kenneth Rockwood

      Affiliations

    • Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
    • Corresponding Author InformationCorresponding author. Centre for Health Care of the Elderly, 5955 Veterans' Memorial Lane, Suite 1421, Halifax, Nova Scotia B3H 2E1, Canada. Tel.: +902-473-8631; fax: +902-473-1050.

Accepted 27 June 2009. published online 14 September 2009.

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PII: S0895-4356(09)00187-5

doi:10.1016/j.jclinepi.2009.06.009

Journal of Clinical Epidemiology
Volume 63, Issue 4 , Pages 435-440, April 2010

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