Non-response bias in physical activity trend estimates

• Main Authors: Bauman Adrian (Author), Griffiths Joe (Author), Cameron Christine (Author), Craig Cora L (Author), Tudor-Locke Catrine (Author), Andersen Ross E (Author)
• Format: Book
• Published: BMC, 2009-11-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>Increases in reported leisure time physical activity (PA) and obesity have been observed in several countries. One hypothesis for these apparently contradictory trends is differential bias in estimates over time. The purpose of this...