Résumé :
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[BDSP. Notice produite par INIST-CNRS R0xHs8FF. Diffusion soumise à autorisation]. Objective : To examine the prospective dose-response relationships between both leisure-time physical activity (LTPA) and walking with self-reported arthritis in older women. Design, setting and participants : Data came from women aged 73-78 years who completed mailed surveys in 1999,2002 and 2005 for the Australian Longitudinal Study on Women's Health. Women reported their weekly minutes of walking and moderate to vigorous physical activities. They also reported on whether they had been diagnosed with, or treated for, arthritis since the previous survey. General estimating equation analyses were performed to examine the longitudinal relationship between LTPA and arthritis and, for women who reported walking as their only physical activity, the longitudinal relationship between walking and arthritis. Women who reported arthritis or a limited ability to walk in 1999 were excluded, resulting in data from 3613 women eligible for inclusion in these analyses. Main results : ORs for self-reported arthritis were lowest for women who reported "moderate" levels of LTPA (OR 0.78 ; 95% Cl 0.67 to 0.92), equivalent to 75 to
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