Physical Activity and Television Watching in Relation to Risk of Type 2 Diabetes
Physical Activity and Television Watching in Relation to Risk of Type 2 Diabetes
复制标题
DOI：
10.1093/aje/kwn344
复制
发表时间：
2009-02-15
影响因子：
5
通讯作者：
Palmer, Julie R.
中科院分区：
文献类型：
--
作者：
Krishnan, Supriya;Rosenberg, Lynn;Palmer, Julie R.
在美国黑人妇女的高危人群中，几乎没有2型糖尿病的可改变的危险因素。作者使用了45，668名年龄在21-69岁之间的黑人女性的数据，从1995年到2005年每两年进行一次黑人女性健康研究，以估计2型糖尿病的发病率比率，比较不同水平的体力活动和看电视。采用考克斯比例风险模型控制混杂因素。在10年的随访中，确定了2，928例2型糖尿病事件。剧烈活动与2型糖尿病风险呈负相关（P趋势< 0.0001）;相对于不活动，每周≥ 7小时的发病率比值为0.43（95%置信区间（CI）：0.31，0.59）。与不散步相比，每周快走≥ 5小时与2型糖尿病风险降低相关（发病率比= 0.67，95%CI：0.49，0.92）。看电视与2型糖尿病风险增加相关：每天看电视≥ 5小时与< 1小时的发病率比为1.86（95%CI：1.54，2.24），与体力活动无关。这些观察数据表明，黑人女性可以通过增加步行或从事剧烈体育活动的时间以及限制看电视来降低患2型糖尿病的风险。
Few modifiable risk factors for type 2 diabetes have been documented in the high-risk population of US black women. The authors used data from 45,668 black women aged 21-69 years, followed biennially from 1995 to 2005 in the Black Women's Health Study, to estimate incidence rate ratios for type 2 diabetes comparing various levels of physical activity and television watching. Cox proportional hazards models were used to control confounding factors. During 10 years of follow-up, 2,928 incident cases of type 2 diabetes were identified. Vigorous activity was inversely associated with type 2 diabetes risk (P-trend < 0.0001); the incidence rate ratio for >= 7 hours per week was 0.43 (95% confidence interval (CI): 0.31, 0.59) relative to no activity. Brisk walking for >= 5 hours per week was associated with reduced type 2 diabetes risk (incidence rate ratio = 0.67, 95% CI: 0.49, 0.92) relative to no walking. Television watching was associated with an increased type 2 diabetes risk: The incidence rate ratio was 1.86 (95% CI: 1.54, 2.24) for >= 5 hours relative to < 1 hour of television per day, independent of physical activity. These observational data suggest that black women might reduce their risk of developing type 2 diabetes by increasing their time spent walking or engaged in vigorous physical activity and by limiting television watching.