Live longer by sitting less
Objectives To determine the impact of sitting and television viewing on life expectancy in the USA.
Design Prevalence-based cause-deleted life table analysis.
Setting Summary RRs of all-cause mortality associated with sitting and television viewing were obtained from a meta-analysis of available prospective cohort studies. Prevalences of sitting and television viewing were obtained from the US National Health and Nutrition Examination Survey.
Primary outcome measure Life expectancy at birth.
Results The estimated gains in life expectancy in the US population were 2.00 years for reducing excessive sitting to
Conclusion Reducing sedentary behaviours such as sitting and television viewing may have the potential to increase life expectancy in the USA.
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