Outdoor light at night, overweight, and obesity in school-aged children and adolescents

被引：33

作者：

Lin, Li-Zi ^{[1
]}

Zeng, Xiao-Wen ^{[1
]}

Deb, Badhan ^{[1
]}

Tabet, Maya ^{[2
]}

Xu, Shu-Li ^{[1
]}

Wu, Qi-Zhen ^{[1
]}

Zhou, Yang ^{[3
]}

Ma, Hui-Min ^{[4
,5
]}

Chen, Duo-Hong ^{[6
]}

Chen, Gong-Bo ^{[1
]}

Yu, Hong-Yao ^{[1
]}

Yang, Bo-Yi ^{[1
]}

Hu, Qiang ^{[7
]}

Yu, Yun-Jiang ^{[3
]}

Dong, Guang-Hui ^{[1
]}

Hu, Li-Wen ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Guangdong Prov Engn Technol Res Ctr Environm Poll, Sch Publ Hlth, Dept Occupat & Environm Hlth, Guangzhou 510080, Peoples R China

[2] St Louis Univ, Coll Publ Hlth & Social Justice, Dept Epidemiol & Biostat, St Louis, MO 63104 USA

[3] Minist Environm Protect, State Environm Protect Key Lab Environm Pollut Hl, South China Inst Environm Sci, Guangzhou 510655, Peoples R China

[4] Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China

[5] Chinese Acad Sci, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China

[6] Guangdong Environm Monitoring Ctr, Dept Air Qual Forecasting & Early Warning, State Environm Protect Key Lab Reg Air Qual Monit, Guangdong Environm Protect Key Lab Atmospher Seco, Guangzhou 510308, Peoples R China

[7] Weifang Peoples Hosp, Dept Pediat Surg, Weifang 261041, Peoples R China

来源：

ENVIRONMENTAL POLLUTION | 2022年 / 305卷

基金：

中国国家自然科学基金;

关键词：

Light exposure; Chilhood obesity; Public health; BODY-MASS; MELATONIN SUPPRESSION; SLEEP DURATION; BLUE-LIGHT; DIM LIGHT; EXPOSURE; ENTERTAINMENT; TIME;

D O I：

10.1016/j.envpol.2022.119306

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Previous studies have indicated that outdoor light at night (LAN) is associated with a higher prevalence of overweight or obesity in adults. However, the association of LAN levels with overweight or obesity in children is still unknown. This study utilized data from the Seven Northeastern Cities study, which included 47,990 school aged children and adolescents (ages 6-18 years). Outdoor LAN levels were measured using satellite imaging data. Weight and height were used to calculate age-sex-specific body mass index (BMI) Z-scores based on the World Health Organization (WHO) growth standards. Overweight status and obesity were defined using the Chinese standard. Information regarding socioeconomic status, sleep-related characteristics, and obesogenic factors were obtained using a questionnaire. A generalized linear mixed model examined the associations of outdoor LAN levels (in quartiles) with the outcomes of interest. Compared to children in the lowest quartile of outdoor LAN levels, children exposed to higher outdoor LAN levels had larger BMI Z-scores and higher odds of being overweight (including obesity) or obese, with the largest estimates in the third quartile [BMI Z-score: beta = 0.26, 95% CI: 0.18-0.33; overweight (including obesity): OR = 1.40, 95% CI: 1.25-1.56; obesity: OR = 1.46, 95% CI: 1.29-1.65]. There was a significant sex difference (P-interaction < 0.001) in the association of outdoor LAN levels with BMI Z-scores, and the association was stronger in males. Results remained robust following multiple sensitivity analyses and the adjustment of sleep-related characteristics, obesogenic factors, and environmental exposures. Our findings suggest that higher outdoor LAN levels are associated with larger BMI Z-scores and greater odds of overweight (including obesity) and obesity in school-aged children and adolescents. Further, the association between outdoor LAN levels and BMI Z-scores is stronger in males. Future studies with exposure assessments that consider both outdoor and indoor LAN exposures are needed.

引用

页数：7

共 46 条

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