Improving self-reports of active and sedentary behaviors in large epidemiologic studies.
Questionnaires that assess active and sedentary behaviors in large-scale epidemiologic studies are known to contain substantial errors. We present three options for improving measures of physical activity behaviors in large-scale epidemiologic studies, discuss the problems and prospects for each of these options, and highlight a new direction for measuring these behaviors in such studies.
Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD 20892-7335, USA. charles.matthews2@nih.gov
Charles E
CE
Matthews
Steven C
SC
Moore
Stephanie M
SM
George
Joshua
J
Sampson
Heather R
HR
Bowles
D003071:Cognition; D016021:Epidemiologic Studies; D015444:Exercise; D006801:Humans; D011939:Mental Recall; D057185:Sedentary Behavior; D057566:Self Report