Mediating effect of sleep duration between depression symptoms and myopia in middle school students

DU Wei; YANG Xu-Xiang; ZENG Ru-Shuang; ZHAO Chun-Yao; XIANG Zhi-Peng; LI Yuan-Chun; WANG Jie-Song; SU Xiao-Hong; LU Xiao; LI Yu; WEN Jing; HAN Dang; DU Qun; HE Jia

doi:10.7499/j.issn.1008-8830.2409011

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Chinese Journal of Contemporary Pediatrics ›› 2025, Vol. 27 ›› Issue (3) : 359-365. DOI: 10.7499/j.issn.1008-8830.2409011

CLINICAL RESEARCH

Mediating effect of sleep duration between depression symptoms and myopia in middle school students

DU Wei, YANG Xu-Xiang, ZENG Ru-Shuang, ZHAO Chun-Yao, XIANG Zhi-Peng, LI Yuan-Chun, WANG Jie-Song, SU Xiao-Hong, LU Xiao, LI Yu, WEN Jing, HAN Dang, DU Qun, HE Jia

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Abstract

Objective To explore the mediating role of sleep duration in the relationship between depression symptoms and myopia among middle school students. Methods This study was a cross-sectional research conducted using a stratified cluster random sampling method. A total of 1 728 middle school students were selected from two junior high schools and two senior high schools in certain urban areas and farms of the Xinjiang Production and Construction Corps. Questionnaire surveys and vision tests were conducted among the students. Spearman analysis was used to analyze the correlation between depression symptoms, sleep duration, and myopia. The Bootstrap method was employed to investigate the mediating effect of sleep duration between depression symptoms and myopia. Results The prevalence of myopia in the overall population was 74.02% (1 279/1 728), with an average sleep duration of (7.6±1.0) hours. The rate of insufficient sleep was 83.62% (1 445/1 728), and the proportion of students exhibiting depression symptoms was 25.29% (437/1 728). Correlation analysis showed significant negative correlations between visual acuity in both eyes and sleep duration with depressive emotions as measured by the Center for Epidemiologic Studies Depression Scale (with correlation coefficients of -0.064, -0.084, and -0.199 respectively; P<0.01), as well as with somatic symptoms and activities (with correlation coefficients of -0.104, -0.124, and -0.233 respectively; P<0.01) and interpersonal relationships (with correlation coefficients of -0.052, -0.059, and -0.071 respectively; P<0.05). The correlation coefficients for left and right eye visual acuity and sleep duration were 0.206 and 0.211 respectively (P<0.001). Sleep duration exhibited a mediating effect between depression symptoms and myopia (indirect effect=0.056, 95%CI: 0.029-0.088), with the mediating effect value for females (indirect effect=0.066, 95%CI: 0.024-0.119) being higher than that for males (indirect effect=0.042, 95%CI: 0.011-0.081). Conclusions Sleep duration serves as a partial mediator between depression symptoms and myopia in middle school students.

Key words

Depression symptom / Sleep duration / Myopia / Mediating effect / Middle school student

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DU Wei, YANG Xu-Xiang, ZENG Ru-Shuang, ZHAO Chun-Yao, XIANG Zhi-Peng, LI Yuan-Chun, WANG Jie-Song, SU Xiao-Hong, LU Xiao, LI Yu, WEN Jing, HAN Dang, DU Qun, HE Jia. Mediating effect of sleep duration between depression symptoms and myopia in middle school students[J]. Chinese Journal of Contemporary Pediatrics. 2025, 27(3): 359-365 https://doi.org/10.7499/j.issn.1008-8830.2409011

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