Zhi Ting-Fan, Sun Xun-Ming, Li Shu-Juan, Wang Qun-Shan, Cai Jian, Li Lin-Zi, Li Yan-Xun, Xu Min-Jie, Wang Yong, Chu Xue-Feng, Wang Zheng-Dong, Jiang Xiao-Yan
Key Laboratory of Arrhythmias of the Ministry of Education of China, Tongji University School of Medicine, Shanghai 200092, China; Department of Pathology and Pathophysiology, Tongji University School of Medicine, Shanghai 200092, China.
Unit of epidemiology, State Key Laboratory of Genetic Engineering and MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences and Institutes of Biomedical Sciences, Fudan University 200433 Shanghai, China.
Arch Gerontol Geriatr. 2016 Jul-Aug;65:211-7. doi: 10.1016/j.archger.2016.03.023. Epub 2016 Mar 30.
This study investigated whether sleep duration and quality were related to life satisfaction (LS) among older Chinese adults and whether depression mediated those relationships. Cross-sectional data from the aging arm of the Rugao Longevity and Aging Study were used. Sleep duration, sleep quality, depression, LS and covariates were analyzed using logistic regressions. To assess the potential mediation of depression on the association between sleep duration and quality and LS, Aroian tests were used. Of 1756 older Chinese adults aged 70-84 years, 90.7% of the men and 83.3% of the women reported being satisfied with their lives. After adjusting for covariates, older adults who slept ≤6h per night were more likely to suffer from life dissatisfaction compared with those who slept 7-8h (OR=2.67, 95% CI 1.86-3.79), and individuals who slept poorly were almost 2 times (OR=2.91, 95% CI 2.16-3.91) more likely to have life dissatisfaction. The Aroian tests confirmed that these relationships were partially mediated by depression (p<0.001). Between short sleep and LS, the mediating effect of depression accounted for 13.9% of the total effects. Moreover, the mediating effect of depression on the association between sleep quality and LS was 13.3%. Short sleep duration and poor sleep quality were inversely associated with LS, and the relationships were partially mediated by depression. Our study suggests that both sleep and depression status are important factors for LS among the elderly.
本研究调查了中国老年人群的睡眠时间和质量是否与生活满意度相关，以及抑郁是否在这些关系中起中介作用。使用了如皋长寿与衰老研究中老年人部分的横断面数据。通过逻辑回归分析睡眠时间、睡眠质量、抑郁、生活满意度及协变量。为评估抑郁对睡眠时间、质量与生活满意度之间关联的潜在中介作用，采用了阿罗扬检验。在1756名年龄在70 - 84岁的中国老年人中，90.7%的男性和83.3%的女性表示对生活满意。在对协变量进行调整后，每晚睡眠≤6小时的老年人与睡眠7 - 8小时的老年人相比，更有可能对生活不满意（比值比=2.67，95%置信区间1.86 - 3.79），睡眠质量差的个体生活不满意的可能性几乎高出2倍（比值比=2.91，95%置信区间2.16 - 3.91）。阿罗扬检验证实这些关系部分由抑郁介导（p<0.001）。在短睡眠与生活满意度之间，抑郁的中介效应占总效应的13.9%。此外，抑郁对睡眠质量与生活满意度之间关联的中介效应为13.3%。短睡眠时间和差睡眠质量与生活满意度呈负相关，且这些关系部分由抑郁介导。我们的研究表明，睡眠和抑郁状态都是老年人生活满意度的重要因素。
