【摘要】 目的:探索我国空巢老年人睡眠时间与抑郁症状的剂量-反应关系。方法:以2018年中国健康与养老追踪调查中2 321名60岁及以上的空巢老年人为研究对象，采用Logistic回归和限制性立方样条（RCS）模型分析睡眠时间与抑郁症状的剂量-反应关系。结果:2 321名空巢老年人中918人被检出抑郁症状，抑郁症状检出率为39.55%，男性抑郁症状检出率为31.25%，女性抑郁症状检出率为49.81%，睡眠时间<5 h的空巢老年人抑郁症状检出率为62.47%,5～<7 h的空巢老年人抑郁症状检出率为41.15%,7～<9 h的空巢老年人抑郁症状检出率为29.55%,9～<11 h的空巢老年人抑郁症状检出率为33.81%，≥11 h的空巢老年人抑郁症状检出率为33.98%。多因素Logistic回归分析结果显示，调整混杂因素后，睡眠时间<5 h和5～<7 h病人的抑郁症状检出率分别是7～<9 h病人的2.529倍和1.549倍（P<0.05）。RCS模型分析结果显示，无论是整体分析还是按性别分层，空巢老年人睡眠时间与抑郁症状均呈非线性剂量-反应关系（总趋势P<0.01，非线性检验P<0.01）。结论:空巢老年人睡眠时间不足是其出现抑郁症状的危险因素，建议加强家庭支持和社会支持，改善空巢老年人睡眠环境，降低空巢老年人出现抑郁症状的风险。更多还原

【Abstract】 Objective:To explore the dose-response relationship between sleep duration and depressive symptoms among empty-nesters in China. Methods:A total of 2 321 empty-nesters aged 60 and above from the 2018 China Health and Retirement Longitudinal Survey were selected as the study subjects. Logistic regression and restricted cubic spline(RCS) models were used to analyze the dose-response relationship between sleep duration and depressive symptoms. Results:918 out of 2 321 empty-nesters were diagnosed with depressive symptoms,with detection rate of 39. 55%. The detection rate of depressive symptoms in males was 31. 25%,and in females was 49. 81%. The detection rate of depressive symptoms in empty-nesters with sleep duration less than 5 hours was 62. 47%,the detection rate of depressive symptoms in empty-nesters with sleep duration ranged from 5 to less than 7 hours was 41. 15%,the detection rate of depressive symptoms in empty-nesters with sleep duration ranged from 7 to less than 9 hours was 29. 55%,the detection rate of depressive symptoms in empty-nesters with sleep duration ranged from 9 to less than 11 hours was 33. 81%,and detection rate of depressive symptoms in empty-nesters with sleep duration≥11 hours was 33. 98%. The results of multivariate Logistic regression analysis showed that after adjusting for confounding factors,the detection rate of depressive symptoms in patients with sleep duration<5 hours and ranged from 5 to less than 7 hours were 2. 529 times and 1. 549 times higher than that in patients with sleep duration ranged from 7 to less than 9 hours,respectively(P<0. 05). The RCS model analysis results showed that both overall analysis and gender stratification showed non-linear dose-response relationship between sleep duration and depressive symptoms among empty-nesters(overall trend P<0. 01,non-linear test P<0. 01). Conclusions:Insufficient sleep duration is a risk factor for depressive symptoms among empty-nesters. It is recommended to strengthen family and social support,so as to improve the sleep environment of empty-nesters,and reduce the risk of depressive symptoms among empty-nesters.更多还原