{"id":1563,"date":"2011-07-13T05:03:26","date_gmt":"2011-07-13T04:03:26","guid":{"rendered":"http:\/\/stg-blogs.bmj.com\/bjsm\/?p=1563"},"modified":"2011-07-13T16:48:25","modified_gmt":"2011-07-13T15:48:25","slug":"steven-n-blair-comments-on-comparing-us-deaths-from-low-fitness-and-%e2%80%98smokadiabesity%e2%80%99","status":"publish","type":"post","link":"https:\/\/stg-blogs.bmj.com\/bjsm\/2011\/07\/13\/steven-n-blair-comments-on-comparing-us-deaths-from-low-fitness-and-%e2%80%98smokadiabesity%e2%80%99\/","title":{"rendered":"Steven N Blair comments on comparing US deaths from low fitness and \u2018Smokadiabesity\u2019"},"content":{"rendered":"

\"\"<\/p>\n

Steven N Blair Guest Blog<\/em><\/p>\n

When comparing US deaths from low fitness and \u2018Smokadiabesity<\/a>\u2019, remember that attributable fractions are\u00a0based on the prevalence of the risk factor as well as the relative risk.\u00a0 In the Aerobics Centre Longitudinal Study<\/a> (1) the smoking prevalence is substantially lower than in the U.S. (I think probably less than half the U.S. rate).<\/p>\n

I do not know how much difference this would make, but I doubt that \u2018low fitness\u2019 \u2013 cardiorespiratory fitness would account for more deaths than smokadiabesity in national data.<\/p>\n

I recommend we currently limit conclusions from the ACLS (1) to that setting and I recommend against extrapolating to the national population.<\/p>\n

References<\/strong><\/p>\n

(1)\u00a0Blair SN. 2009. Physical inactivity: the biggest public health problem of the 21st century.\u00a0BJSM, <\/a><\/abbr>43: 1-2.<\/a><\/p>\n

Related Articles<\/strong><\/p>\n

Bauman A, Titze S, Rissel Cand Oja P. 2011.\u00a0Changing gears: bicycling as the panacea for physical inactivity? BJSM <\/a>45:761-762. <\/a><\/em>(Free online!)<\/a><\/p>\n

Khan, KM. 2009.\u00a0Mid-year review: physical inactivity universally accepted as the biggest public health problem of the 21st century, shoulder exam challenges, and progress against the scourges of anterior knee pain and ACL injuries. BJSM,\u00a043:469-470<\/a>. <\/a><\/em>(Free Online!)<\/a> <\/a><\/em><\/p>\n

<\/em>Steven N. Blair is a\u00a0Professor in the\u00a0Departments of Exercise Science \u00a0Epidemiology\/Biostatistics at the University of South Carolina<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Steven N Blair Guest Blog When comparing US deaths from low fitness and \u2018Smokadiabesity\u2019, remember that attributable fractions are\u00a0based on the prevalence of the risk factor as well as the relative risk.\u00a0 In the Aerobics Centre Longitudinal Study (1) the smoking prevalence is substantially lower than in the U.S. (I think probably less than half […]<\/p>\n

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