Outdoor light at night and the prevalence of depressive symptoms and suicidal behaviors: A cross-sectional study in a nationally representative sample of Korean adults

Journal of Affective Disorders
Jin-Young Min, Kyoung-Bok Min

Abstract

Outdoor light at night (LAN) is an increasingly prevalent type of environmental pollution. Studies have demonstrated that outdoor LAN can disrupt circadian rhythms, potentially contributing to insomnia, cancer, cardiovascular disease, and metabolic changes in humans. We investigated the association of outdoor LAN with depressive symptoms and suicidal behaviors in South Korean adults. This study used data from the 2009 Korean Community Health Survey, a representative sample dataset. Study population consisted of 113,119 participants for the assessment of depressive symptoms and 152,159 participants for the assessment of suicidal behavior. Depressive symptoms were measured using the Korean version of the Center for Epidemiologic Studies Depression Scale (depressive symptoms, score of > 16). Suicidal behaviors were defined as the experience of suicidal ideation or attempt. Outdoor LAN was estimated by satellite data from the National Centers for Environmental Information. Participants with depressive symptoms or history of suicidal behaviors were more likely to have exposure to outdoor LAN than those without depressive symptoms or suicidal behaviors. Compared with adults living in areas exposed to the lowest outdoor LAN, those liv...Continue Reading

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Citations

Jan 25, 2019·Current Opinion in Psychiatry·Erin HoareMichael Berk
Jul 25, 2018·Current Psychiatry Reports·Briana J Taylor, Brant P Hasler
Feb 24, 2019·Journal of Affective Disorders·Andrea AgugliaMario Amore
Mar 16, 2021·Environmental Research·Jessica StanhopePhilip Weinstein
Jul 3, 2021·International Journal of Environmental Research and Public Health·Liqin Zhang, Lin Wu

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