Association of sleep duration with cognitive impairment among older adults aged 65 years and older in China
10.3760/cma.j.cn112150-20200916-01208
- VernacularTitle:中国65岁及以上老年人睡眠时长与认知功能受损的关联研究
- Author:
Saisai JI
1
;
Yuebin LYU
;
Yingli QU
;
Chen CHEN
;
Chengcheng LI
;
Jinhui ZHOU
;
Zheng LI
;
Wenli ZHANG
;
Yawei LI
;
Yingchun LIU
;
Feng ZHAO
;
Huijuan ZHU
;
Xiaoming SHI
Author Information
1. 中国疾病预防控制中心环境与人群健康重点实验室 中国疾病预防控制中心环境与健康相关产品安全所，北京 100021
- Keywords:
Aged;
Cross-sectional studies;
Sleep;
Cognitive impairment
- From:
Chinese Journal of Preventive Medicine
2021;55(1):31-38
- CountryChina
- Language:Chinese
-
Abstract:
Objective:The study is to examine association of sleep duration and cognitive impairment in the older adults aged 65 years and older in China.Methods:We analyzed data from 2017-2018 wave of Chinese Longitudinal Healthy Longevity Survey (CLHLS). A total of 14 966 participants were included in the analysis. Data with respect to socioeconomic status, community involvement, behavior pattern, diet, life style, family structure, disease condition, mental health and cognitive function were collected. Cognitive function was measured with Mini-mental State Examination (MMSE). We conducted generalized linear mixed models to examine associations of sleep duration with cognitive impairment, and subgroup analyses of sex and age were conducted.Results:Among 14 966 participants, the percentage of participants aged 65 to 79 years, 80 to 89 years, 90 to 99 years and 100 years and older was 5 148 (4.40%), 3 777 (25.24%), 3 322 (22.20%) and 2 719 (18.16%), respectively. A total of 2 704 participants reported sleep duration of 5 h and less, and 3 883 reported 9 h and more, accounting for 18.94% and 27.19%, respectively. In total, 3 748 were defined with cognitive impairment, accounting for 25.04%. The results of generalized linear mixed models showed that both short (≤5 h) and long (≥ 9 h) sleep duration were associated with cognitive impairment compared with sleep duration of 7 h, with OR(95% CI) of 1.35(1.09-1.68) and 1.70(1.39-2.07), respectively. The association of sleep duration with cognitive impairment was more obvious in males and individuals aged 65 to 79 years old. Conclusion:Short or long sleep duration was responsible for increased risk of cognitive impairment in older Chinese.
