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Objective To explore the correlation between sleep and depression in middle-aged and elderly people in Chinese community, so as to provide references for improving sleep quality, mental health and quality of life of middle-aged and elderly people. Methods The data of this study were collected from the China Health and Retirement Longitudinal Study (CHARLS) in 2013 and 2018. After screening the data, 6 312 participants were included in the study, and they were divided into groups according to their nocturnal sleep duration. The multivariate linear regression model and multivariate logistic regression model were constructed, and the covariates were adjusted to analyze the relationship between nocturnal sleep duration and depression. Results There were 76.81% of the patients having too short or too long sleep at night (7 to < 8 hours was the normal sleep time).The scores and detection rates of depression in 2018 were significantly different among different night sleep length groups (F=30.127, χ2=67.928, P<0.001). There was a negative correlation between night sleep time and depression score (β=-0.278, P<0.001). After further consideration of covariates, short sleep duration (≤ 5 h) was a risk factor for depression (OR=1.621, 95%CI:1.371-1.918), and the risk of depression was higher in women than in men (OR=1.673, 95%CI: 1.363-2.054 in women; OR=1.501, 95%CI: 1.120-2.012 in men). Conclusion The nocturnal sleep of the middle-aged and elderly is related to depression and is affected by demographic, socio-economic factors, health behavior factors and other covariables, and middle-aged and elderly women have a higher risk than men and older age. Attention should be paid to sleep health and mental health of the middle-aged and elderly, so as to improve their quality of life.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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