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Physical activity and longevity The Copenhagen City Heart Study Peter Schnohr MD, FAAC
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Mortality in joggers ”Mortality in joggers: Population based study of 4568 men” BMJ 2000;321:602 Peter Schnohr, Jan Parner, Peter Lange
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Are you a jogger? Deaths 1976-78 1981-83 30% (1297 / 4335) No No 5%
(follow up 22 yrs.) 30% (1297 / 4335) No No 5% (5 / 96) Yes Yes
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Are you a jogger? 1976-78 1981-83 Relative risk of death No 1 Yes
0,39 (p=0,005) Confounders: Age, diabetes, smoking, education, income, blood pressure, alcohol, cholesterol, HDL-cholesterol and body mass index
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Physical activity and longevity Relative risk of death in 7
Physical activity and longevity Relative risk of death in men and women, age 20-79, followed for 17 yrs, deaths og Men Women Relative risk Gained life years Relative risk Gained life years Low < 2 hrs. per week 1 - 1 - Peter Schnohr, Henrik Scharling, Jan Skov Jensen. Am J Epidemiol 2003;158: 2-4 hrs. per week 0,71 3,5 0,64 4,4 Moderate High > 4 hrs. per week 0,61 5,0 0,66 4,3
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Changes in physical activity and longevity in young, middle-aged and older Relative risk of death in men and women, age 20-79, followed 17 yrs Men Women Gained life years Relative risk Gained life years Relative risk Moderate/high Age Low Low Moderate/high 20-54 - - 1 0,67 1 0,67 55-64 - - 1 0,78 1 0,80 65-79 1 0,46 4,4 1 0,67 3,4
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Joggers 1976 to 2003 (%) 1976 1981 1991 2001 % 20-24 women 20-24 men
80 70 1976 1981 60 1991 50 2001 % 40 30 20 10 20-24 women 20-24 men 50-54 women 50-54 men 70-74 women 70-74 men
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Messages on physical activity
4 hrs of brisk walking per week prolongues life by 4 to 5 years Joggers prolongues life even more It is never too late to start physical exercise We still do not know the most optimal: Duration – frequency – intensity of physical activity. The Copenhagen City Heart Study will answer those questions in a near future.
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