Amount of time spent in sedentary behaviors and cause-specific mortality in US adults
Amount of time spent in sedentary behaviors and cause-specific mortality in US adults
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DOI：
10.3945/ajcn.111.019620
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发表时间：
2012-02-01
影响因子：
7.1
通讯作者：
Schatzkin, Arthur
中科院分区：
文献类型：
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作者：
Matthews, Charles E.;George, Stephanie M.;Schatzkin, Arthur
背景：久坐的行为占了现代生活，但是我们在考虑中等剧烈的体育锻炼的好处（MVPA）后，我们并没有完全理解这些行为对死亡率的不利影响（MVPA）。电视观看与死亡率呈正相关，并描述了这些久坐行为和MVPA对死亡率的独立和组合影响。 NIH-AARP饮食和健康研究，我们检查了240,819名成年人（50-71岁），他们在基线时未报告任何癌症，心血管疾病或呼吸道疾病。确定了8.5 y的死亡率：久坐的行为与年龄，性别，教育，吸烟，饮食，种族和MVPA调整后的死亡率正相关。报告电视观看最多的参与者（> = 7 h，与7 h/wk相比），高量的电视查看（> = 7 h/d）仍然与全因的风险增加有关（HR：1.47; 95％CI ：1.20，1.79）和心血管（HR：2.00; 95％CI：1.33，3.00）死亡率与报告电视查看最少的死亡率相比
Background: Sedentary behaviors predominate modern life, yet we do not fully understand the adverse effects of these behaviors on mortality after considering the benefits of moderate-vigorous physical activity (MVPA).Objective: We tested the hypotheses that higher amounts of overall sitting time and television viewing are positively associated with mortality and described the independent and combined effects of these sedentary behaviors and MVPA on mortality.Design: In the NIH-AARP Diet and Health Study, we examined 240,819 adults (aged 50-71 y) who did not report any cancer, cardiovascular disease, or respiratory disease at baseline. Mortality was ascertained over 8.5 y.Results: Sedentary behaviors were positively associated with mortality after adjustment for age, sex, education, smoking, diet, race, and MVPA. Participants who reported the most television viewing (>= 7 h compared with 7 h/wk), high amounts of television viewing (>= 7 h/d) remained associated with increased risk of all-cause (HR: 1.47; 95% CI: 1.20, 1.79) and cardiovascular (HR: 2.00; 95% CI: 1.33, 3.00) mortality compared with those reporting the least television viewing (