Reliability of a physical activity questionnaire in middle-aged men.
Although some items from a questionnaire used to assess occupational and leisure activity in a cohort of male factory workers have reasonable validity, their reliability is unknown. In this study the reliability of this questionnaire was assessed in 54 middle-aged male factory employees by test-retest administration over a 4-6 week period. Kappa statistics for test-retest agreement for individual items on the questionnaire ranged between 0.24 and 0.66. Those items that demonstrated reasonable reliability and validity will subsequently be related to a range of disease endpoints in a prospective cohort study.
Batty
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Epidemiology Unit, Department of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.
D015331:Cohort Studies; D015444:Exercise; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires