Association Between Exposure to Outdoor Artificial Light at Night and Sleep Disorders Among Children in China

• DOI: 10.1001/jamanetworkopen.2022.13247
• Publication Date: 2022-05-20T15:33:16Z
• Authors: Le-Bing Wang; Yan-Chen Gong; Qiu-Ling Fang; Xin-Xin Cui; Shyamali C. Dharmage; Bin Jalaludin; Luke D. Knibbs; Michael S. Bloom; Yuming Guo; Li-Zi Lin; Xiao-Wen Zeng; Bo-Yi Yang; Gongbo Chen; Ru-Qing Liu; Yunjiang Yu; Li-Wen Hu; Guang-Hui Dong
• Keywords: Sleep; Association (psychology)

<h3>Importance</h3> Healthy sleep has an important role in the physical and mental health of children. However, few studies have investigated association between outdoor artificial light at night (ALAN) disorders <h3>Objective</h3> To explore associations ALAN exposure <h3>Design, Setting, Participants</h3> This population-based cross-sectional study, part National Chinese Children Health Study, was conducted from April 1, 2012, to June 30, 2013, first stage May 2016, 31, 2018, second 55 districts 14 cities China. analysis included 201 994 children adolescents aged 2 18 years. Data were analyzed February 20 March 21, 2022. <h3>Exposures</h3> Outdoor (in nanowatts per centimeters squared steradian) within 500 m each participant's residential address obtained satellite imagery data, with a resolution approximately m. <h3>Main Outcomes Measures</h3> Sleep measured by version Disturbance Scale for Children. Generalized linear mixed models used estimate scores disorders. <h3>Results</h3> The study (mean [SD] age, 11.3 [3.2] years; 106 378 boys [52.7%]), 7166 (3.5%) whom had disorder symptoms. participants ranged 0.02 113.48 nW/cm²/sr. Compared lowest quintile (Q1) exposure, higher quintiles (Q2-Q5) associated increase total 0.81 (95% CI, 0.66-0.96) Q2, 0.83 0.68-0.97) Q3, 0.62 0.46-0.77) Q4, 0.53 0.36-0.70) Q5. Higher also odds ratios 1.34 1.23-1.45) 1.43 1.32-1.55) 1.31 1.21-1.43) 1.25 1.14-1.38) Similar observed subtypes. In addition, greater effect estimates found among younger than 12 <h3>Conclusions Relevance</h3> findings this suggest that are more prevalent residing areas high levels generally stronger These further effective control may be measure improving quality children's sleep.