美国印第安老年人的失眠症状与心血管疾病：本土老年人护理研究。
Insomnia symptoms and cardiovascular disease among older American Indians: the Native Elder Care Study.
机构信息
Department of Community Medicine, West Virginia University School of Medicine, Robert C. Byrd Health Sciences Center,1 Medical Center Drive, P.O. Box 9190, Morgantown, WV 26505, USA.
出版信息
J Environ Public Health. 2011;2011:964617. doi: 10.1155/2011/964617. Epub 2011 Dec 19.
BACKGROUND
Cardiovascular disease (CVD) is the leading cause of death among American Indians. It is not known if symptoms of insomnia are associated with CVD in this population.
METHODS
We examined 449 American Indians aged ≥ 55 years from the Native Elder Care Study. The main outcome-of-interest was self-reported CVD.
RESULTS
Short sleep duration, daytime sleepiness, and difficulty falling asleep were positively associated with CVD after adjusting for demographic, lifestyle, and clinical risk factors. Compared with a sleep duration of 7 h, the multivariable odds ratio (OR) (95% confidence interval [CI]) of CVD among those with sleep duration ≤ 5 h was 2.89 (1.17-7.16). Similarly, the multivariable OR (95% CI) of CVD was 4.45 (1.85-10.72) and 2.60 (1.25-5.42) for daytime sleepiness >2 h and difficulty falling asleep often/always.
CONCLUSION
Symptoms of insomnia including short sleep duration, daytime sleepiness, and difficulty falling asleep are independently associated with CVD in American Indians aged ≥ 55 years.
背景
心血管疾病（CVD）是美国印第安人的主要死因。目前尚不清楚在这一人群中，失眠症状是否与 CVD 有关。
方法
我们研究了来自美国原住民护理研究的 449 名年龄≥55 岁的美国印第安人。主要观察结果是自我报告的 CVD。
结果
在调整人口统计学、生活方式和临床危险因素后，短睡眠时间、白天嗜睡和入睡困难与 CVD 呈正相关。与睡眠时间为 7 小时相比，睡眠时间≤5 小时的 CVD 的多变量比值比（OR）（95%置信区间[CI]）为 2.89（1.17-7.16）。同样，白天嗜睡>2 小时和入睡困难经常/总是的 CVD 的多变量 OR（95%CI）分别为 4.45（1.85-10.72）和 2.60（1.25-5.42）。
结论
在年龄≥55 岁的美国印第安人中，失眠症状包括短睡眠时间、白天嗜睡和入睡困难与 CVD 独立相关。
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