Less healthy, but more active: Opposing selection biases when recruiting older people to a physical activity study through primary care

<p>Abstract</p> <p>Background</p> <p>Physical activity studies in older people experience poor recruitment. We wished to assess the influence of activity levels and health status on recruitment to a physical activity study in older people.</p> <p>Methods</p> <p>Comparison of participants and non-par...

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Bibliografiska uppgifter

Huvudupphov:	Carey Iain M, Victor Christina R, Harris Tess J, Adams Rika, Cook Derek G
Materialtyp:	Artigo
Språk:	Inglês
Utgiven:	BMC 2008-05-01
Serie:	BMC Public Health
Länkar:	http://www.biomedcentral.com/1471-2458/8/182
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