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Obesity, Physical Inactivity Poses Arthritis Risk for Women in the US HOBOKEN, NJ -- February 25, 2010 -- Researchers noted a higher prevalence of arthritis and arthritis-attributable activity limitations (AAL) in the United States versus the Canadian population. The authors attribute the higher prevalence of arthritis and AAL to a greater level of obesity and physical inactivity in Americans, particularly women. Full findings of this study are published in the March issue of Arthritis Care & Research. This study is the first to provide a direct comparison of US and Canadian data in search of between-country disparities associated with the prevalence of arthritis and AAL. For the study, researchers from the Toronto Western Research Institute, Toronto, Ontario, analysed results from the Joint Canada/United States Survey of Health (JCUSH) conducted in cooperation by Statistics Canada and the U.S. National Center for Health Statistics during 2002-2003. Data were obtained for 3,505 Canadians and 5,183 Americans with an overall response rate of 65.5% and 50.2%, respectively. Results showed that in the United States the prevalence of arthritis was 18.7% and AAL was 9.6%, while equivalent estimates in Canada were 16.8% and 7.7%, respectively. Researchers noted that arthritis prevalence was higher in American women at 23.3% compared with 19.6% of Canadian women. Women in the US also had a higher prevalence of AAL than Canadian women at 13.0% versus 9.2%. The overall occurrence of arthritis and AAL in men was similar in both countries at roughly 14% and 6%, respectively. “Our study results suggest that the higher prevalence of arthritis and AAL in the United States may be a consequence of greater obesity and physical inactivity in that country, particularly in women,” noted Dr. Badley. “Public health initiatives that promote healthy weight and physical activity may benefit from including arthritis concerns to its message, and could potentially reduce the incidence of arthritis and AAL.” SOURCE: Wiley-Blackwell E-mail this page to a friend or colleague! To print, use this version