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March 5, 2008

Cardiorespiratory Fitness, Adiposity, and Mortality—Reply

JAMA. 2008;299(9):1013-1014. doi:10.1001/jama.299.9.1014-a

In Reply: Dr Wei raises a concern about the identical rates of physical inactivity between survivors and decedents. Self-reported physical activity is likely a crude approximation of actual physical activity, and misclassification may be high because activity assessment tends to be incomplete when based on questionnaires such as ours and others.1,2

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