Impact of changes in television viewing time and physical activity on longevity: a prospective cohort study.

ABSTRACT: Television viewing is a highly prevalent sedentary behavior among older adults, yet the mortality risks associated with hours of daily viewing over many years and whether increasing or decreasing viewing time affects mortality is unclear. This study examined: 1) the long-term association between mortality and daily viewing time; 2) the influence of reducing and increasing in television viewing time on longevity and 3) combined effects of television viewing and moderate-to-vigorous physical activity (MVPA) on longevity.Participants included 165,087 adults in the NIH-AARP Diet and Health (aged 50-71 yrs) who completed questionnaires at two-time-points (Time 1: 1994-1996, and Time 2: 2004-2006) and were followed until death or December 31, 2011. Multivariable-adjusted Cox proportional hazards regression was used to estimate Hazard Ratios and 95% confidence intervals (CI) with self-reported television viewing and MVPA and all-cause mortality.Over 6.6 years of follow-up, there were 20,104 deaths. Compared to adults who watched?

SUBMITTER: Keadle SK 

PROVIDER: S-EPMC4683741 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature