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        Validity and repeatability of the EPIC-Norfolk Physical Activity Questionnaire

        Author
        Wareham, N.J.
        Jakes, R.W.
        Rennie, K.L.
        Mitchell, J.
        Hennings, S.
        Day, N.E.
        Attention
        2299/3667
        Abstract
        Physical activity is an important lifestyle which is often poorly assessed in epidemiological studies. The European Prospective Investigation into Cancer Study-Norfolk cohort (EPIC-Norfolk), a large population-based cohort study, has developed a comprehensive questionnaire to assess activity in different domains of life aimed at assessing total energy expenditure. We report the repeatability of this instrument and its validity against repeated objective measures of fitness and energy expenditure undertaken throughout the time frame of reference of the questionnaire.
        Publication date
        2002
        Published in
        International Journal of Epidemiology
        Published version
        https://doi.org/10.1093/ije/31.1.168
        Other links
        http://hdl.handle.net/2299/3667
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