【摘要】 目的 探讨中国老年人睡眠时长与肌少症之间的关联，为降低肌少症的发生提供科学依据。方法 数据来源于河南省健康老龄化水平调查，于2023年10—12月采用多阶段分层抽样的方法抽取河南省60岁及以上常住居民进行问卷调查和体格检查，本研究以其中信息完整9 057人作为研究对象。应用SPSS 27.0及R 9.4软件进行χ~2检验和多因素logistic回归分析。采用限制性立方样条模型评估老年人睡眠时长与肌少症之间剂量-效应关联。结果 9 057名老年人睡眠时长<6、6～<7、7～<8、8～<9和≥9 h的占比分别为16.90%、14.93%、17.29%、21.29%和29.59%，肌少症患病率为39.54%。多因素logistic回归模型结果显示，与睡眠时长为7～<8 h的老年人相比，睡眠时长为<6 h(OR=1.30,95%CI:1.10～1.53)和≥9 h(OR=1.28,95%CI:1.10～1.48)与老年人发生肌少症高风险相关。限制性立方样条模型结果显示，老年人睡眠时长与肌少症呈非线性剂量反应关系（P<0.05）。结论 河南省老年人睡眠时间过短和过长均会增加肌少症的发生风险，优化睡眠时长可以预防肌少症的发生发展。更多还原

【Abstract】 Objective To explore the correlation between sleep duration and sarcopenia in Chinese elderly people,and provide the scientific basis for reducing the occurrence of sarcopenia. Methods The data were derived from the survey on the level of healthy aging in Henan Province. From October to December 2023,a multi-stage stratified sampling method was employed to select permanent residents aged 60 and above in Henan Province for questionnaire surveys and physical examinations. The study took9 057 individuals with complete information as the research subjects. SPSS 27.0 and R 9.4 softwares were used for chi-square tests and multivariate logistic regression analysis. A restricted cubic spline model was adopted to assess the dose-response relationship between sleep duration and sarcopenia in the elderly. Results The proportions of 9 057 elderly with sleep duration<6 h,6-<7 h,7-<8 h,8-<9 h and ≥9 h were 16.90%,14.93%,17.29%,21.29% and 29.59% respectively;the morbidity of sarcopenia was39.54%. The results of the multivariate logistic regression model showed that as compared with the elderly with sleep duration7-< 8 hours group,the groups with sleep duration of < 6 hours(OR=1.30,95%CI:1.10-1.53) and ≥9 hours(OR=1.28,95%CI:1.10-1.48) were associated with a high risk of sarcopenia in the elderly. The results of the restricted cubic spline model showed that there was a nonlinear dose-response relationship between sleep duration and sarcopenia in the elderly(P<0.05). Conclusion Both excessively short and long sleep durations can increase the risk of sarcopenia among elderly in Henan Province. Optimizing sleep duration may help prevent the onset and progression of sarcopenia.更多还原