Sedentary behaviour and life expectancy in the USA: a cause-deleted life table analysis.

ABSTRACT: To determine the impact of sitting and television viewing on life expectancy in the USA. Prevalence-based cause-deleted life table analysis. 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. Life expectancy at birth. The estimated gains in life expectancy in the US population were 2.00 years for reducing excessive sitting to <3 h/day and a gain of 1.38 years from reducing excessive television viewing to <2 h/day. The lower and upper limits from a sensitivity analysis that involved simultaneously varying the estimates of RR (using the upper and lower bounds of the

SUBMITTER: Katzmarzyk PT 

PROVIDER: S-EPMC3400064 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature