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中国老年人睡眠时间轨迹和全因死亡率:一个基于社区的队列研究
Rongxiu Ding1, Pan Ding2, Liuhong Tian2
1School and Hospital of Stomatology, Wenzhou Medical University, 325000, Wenzhou, Zhejiang, P.R. China.
BMC public health
|June 21, 2023
概括
在中国老年人中,睡眠时间的增加或快速减少与较高的死亡风险有关. 睡眠时间超过9小时也会显著增加死亡风险,这凸显了一致的睡眠模式的重要性.
科学领域:
- 老年学是一门学科.
- 睡眠科学 睡眠科学
- 公共卫生 公共卫生
背景情况:
- 中国面临着人口快速老龄化,老年人更容易受到健康风险的影响.
- 不适当的睡眠时间在老年人中很常见,并且与死亡率的增加有关.
- 长期睡眠时间模式及其对死亡率的影响在这个人口群体中仍未得到充分研究.
研究的目的:
- 研究长期睡眠时间轨迹与中国老年人全因死亡率之间的关联.
- 在这个人群中随着时间的推移,确定睡眠时间变化的独特模式.
- 为了确定特定的睡眠时间模式是否预测死亡风险.
主要方法:
- 利用了中国长度健康长寿调查 (CLHLS) 的数据,该调查在2005年,2008年和2011年对3895名参与者进行了调查.
- 使用隐性类混合模型识别了睡眠持续时间轨迹.
- 通过使用考克斯比例危险和拉普拉斯回归模型分析了与所有原因死亡率的关联,并追踪到2019年.
主要成果:
- 确定了五种不同的睡眠时间轨迹,包括适度增加,快速增加,持续7小时,适度减少和快速减少.
- 与持续的7小时睡眠相比,中度和快速增加的睡眠轨迹显示出所有原因死亡风险比率显著更高 (HR=1.21).
- 睡眠时间超过9小时与急剧增加的死亡风险有关 (HR=1.20).
结论:
- 适度和快速增加的睡眠时间轨迹与中国老年人全因死亡率的增加有关.
- 持续睡眠时间约为7小时似乎是预防死亡的保护因素.
- 保持一致的睡眠时间,特别是避免过度睡眠 (超过9小时),对于老年人的寿命至关重要.
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