Association between outdoor artificial light at night and sleep duration among older adults in China: A cross-sectional study

被引:0
作者
Hu, Kejia [1 ]
Li, Wanlu [1 ]
Zhang, Yunquan [2 ]
Chen, Huashuai [3 ]
Bai, Chen [4 ]
Yang, Zhenchun [5 ,6 ]
Lorenz, Thiess [7 ]
Liu, Keyang [8 ]
Shirai, Kokoro [8 ]
Song, Jinglu [9 ]
Zhao, Qi [10 ]
Zhao, Yali [11 ]
Zhang, Junfeng [5 ,6 ]
Wei, Jing [12 ]
Pan, Jiahao [1 ]
Qi, Jin [1 ]
Ye, Tingting [13 ]
Zeng, Yi [14 ]
Yao, Yao [15 ]
机构
[1] Zhejiang Univ, Sch Publ Hlth, Dept Big Data Hlth Sci, Hangzhou 310058, Peoples R China
[2] Wuhan Univ Sci & Technol, Sch Publ Hlth, Wuhan 430065, Peoples R China
[3] Xiangtan Univ, Business Sch, Xiangtan 411105, Peoples R China
[4] Renmin Univ China, Sch Lab & Human Resources, Beijing 100872, Peoples R China
[5] Duke Univ, Global Hlth Inst, Durham, NC 27708 USA
[6] Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA
[7] Univ Heart & Vasc Ctr Hamburg, Dept Cardiol, D-20246 Hamburg, Germany
[8] Osaka Univ, Dept Social Med, Grad Sch Med, Publ Hlth, Suita, Osaka 5650871, Japan
[9] Xian Jiaotong Liverpool Univ, Dept Urban Planning & Design, Suzhou 215123, Peoples R China
[10] Shandong Univ, Sch Publ Hlth, Dept Epidemiol, Jinan 250012, Peoples R China
[11] Chinese Peoples Liberat Army Gen Hosp, Cent Lab, Hainan Hosp, Sanya 572000, Peoples R China
[12] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA
[13] Monash Univ, Sch Publ Hlth & Prevent Med, Melbourne, Vic 3004, Australia
[14] Peking Univ, Ctr Hlth Aging & Dev Studies, Natl Sch Dev, Beijing 100871, Peoples R China
[15] Peking Univ, China Ctr Hlth Dev Studies, Beijing 100191, Peoples R China
基金
中国国家自然科学基金; 美国国家卫生研究院; 国家重点研发计划;
关键词
Nighttime light; Outdoor light; ALAN; Sleep duration; Sleep; China; BRIGHT LIGHT; CANCER-RISK; LAND-USE; MELATONIN; EXPOSURE; PHASE; POPULATION; PREVALENCE; INSOMNIA;
D O I
暂无
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Background: Light after dusk disrupts the circadian rhythms and shifts the timing of sleep later; but it is unknown whether outdoor artificial light at night (ALAN) affects sleep quality. This study aimed to explore the association between residential outdoor ALAN and sleep duration in a nationally representative sample of Chinese older adults. Methods: We examined the cross-sectional associations of outdoor ALAN with self-reported sleep duration in 13,474 older adults participating in the 2017-2018 wave of the Chinese Longitudinal Healthy Longevity Survey (CLHLS). Outdoor ALAN exposure was estimated at the residence level using satellite images. We applied generalized linear mixed models to investigate the association between ALAN exposure and sleep duration. We performed stratified analyses by age, sex, education, and household income levels. Moreover, we used multi-level logistic regression models to investigate the effects of ALAN on the short sleep duration (<= 6 h) and the long sleep duration (>8 h), respectively, in reference to sleep for >6-8 h per day. Results: We found a significant association between outdoor ALAN intensity and sleep duration. The highest quartile of ALAN was associated with 17.04 (95% CI: 9.42-24.78) fewer minutes of sleep as compared to the lowest quartile. The reductions in sleep duration per quartile change in ALAN were greater in the young old (>= 65-85 years) and in those with higher levels of education, and those with higher household income, respectively. We did not detect a sex difference. In addition, those in the highest quartile of ALAN were more likely to report a 25% (95% CI: 10%-42%) increase in short sleep (<6 h), and a 21% (95% CI: 9%-31%) decrease in long sleep (>8 h). Conclusions: Increasing outdoor nighttime light intensity surrounding residences was associated with shorter sleep duration in older residents in China. This finding implies the importance of urban outdoor artificial light management as a potential means to lower the public health burden of sleep disorders.
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页数:9
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