Television Viewing Time, Physical Activity, and Mortality Among African Americans.
Television Viewing Time, Physical Activity, and Mortality Among African Americans.
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电视观看时间，体育锻炼和非洲裔美国人的死亡率。
DOI：
10.5888/pcd15.170247
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发表时间：
2018-01-18
影响因子：
5.5
通讯作者：
Djoussé L
中科院分区：
文献类型：
--
作者：
Imran TF;Ommerborn M;Clark C;Correa A;Dubbert P;Gaziano JM;Djoussé L
延长看电视时间（久坐活动的标志）与全因死亡率增加独立相关；然而，这种关联很少在非裔美国人中进行研究。我们研究的目的是利用杰克逊心脏研究 (JHS) 的数据来检验非裔美国人看电视时间与死亡率之间的关联。我们研究了 JHS 研究中的 5,289 名参与者，他们在 2000 年至 2004 年的 JHS 基线调查问卷中报告了看电视时间（小时/天）。使用根据年龄、性别、吸烟、饮酒、体力活动、营养、流行的冠心病、慢性肾病、糖尿病和高血压进行调整的多变量 Cox 回归模型，我们计算了风险比来检查看电视时间（≤2 小时/天、2-4 小时/天和≥4 小时/天）之间的关联。小时/天）和死亡率。参与者的平均年龄为 55 岁，其中 64% 是女性。中位随访时间为 9.9 年（四分位数间距，9.0-10.7）后，发生了 615 例死亡（2017 年进行的数据分析）。与每天看电视时间少于 2 小时的人相比，每天看电视时间 2 至 4 小时的死亡率风险比为 1.08 (0.86–1.37)，每天看电视时间大于或等于 4 小时的死亡率风险比为 1.48 (95% CI: 1.19–1.83)（P 趋势 = .002）。当我们将分析限制在从事休闲活动的人时，每天看电视 2 至 4 小时的死亡率风险比为 1.10（95% CI，0.84-1.45），每天看电视超过 4 小时与每天看电视少于 2 小时相比，死亡率风险比为 1.45（95% CI，1.13-1.86）。我们的研究结果表明，观看电视的时间越长，即使是那些进行休闲体育活动的人，也与非裔美国人的全因死亡率增加有关。因此，它可以作为具有干预潜力的久坐生活方式的指标。
Prolonged television viewing time, a marker of sedentary activity, is independently associated with increased all-cause mortality; however, this association has rarely been studied in African Americans. The objective of our study was to examine the association between television viewing time and mortality among African Americans by using data from the Jackson Heart Study (JHS). We studied 5,289 participants from the JHS study who reported television viewing time (h/day) in the JHS baseline questionnaire from 2000 through 2004. Using multivariable Cox regression models adjusted for age, sex, smoking, alcohol use, physical activity, nutrition, prevalent coronary heart disease, chronic kidney disease, diabetes, and hypertension, we computed hazard ratios to examine the association between television viewing time (≤2 h/day, 2–4 h/day, and ≥4 h/day) and mortality. Participants had a mean age of 55 years, and 64% were women. After a median follow-up of 9.9 years (interquartile range, 9.0–10.7), 615 deaths occurred (data analysis conducted in 2017). Hazard ratios for mortality were 1.08 (0.86–1.37) for television time of 2 to 4 hours per day and 1.48 (95% CI: 1.19–1.83) for television time of greater than or equal to 4 hours per day when compared with those who watched television less than 2 hours per day (P trend = .002). When we restricted analyses to those who performed leisure-time activities, the hazard ratios for mortality were 1.10 (95% CI, 0.84–1.45) for television viewing of 2 to 4 hours per day and 1.45 (95% CI, 1.13–1.86) for more than 4 hours per day compared with the less than 2 hours per day. Our findings suggest that greater television viewing time, even among those who perform leisure-time physical activities, is associated with increased all-cause mortality among African Americans. Thus, it may serve as an indicator of a sedentary lifestyle with potential for intervention.
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