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

• Main Authors: Carey Iain M (Author), Victor Christina R (Author), Harris Tess J (Author), Adams Rika (Author), Cook Derek G (Author)
• Format: Book
• Published: BMC, 2008-05-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

<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<...