Is sexual minority status associated with poor sleep quality among adolescents? Analysis of a national cross-sectional survey in Chinese adolescents.

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Is sexual minority status associated with poor sleep quality among adolescents? Analysis of a national cross-sectional survey in Chinese adolescents.

BMJ Open. 2017 Dec 26;7(12):e017067

Authors: Li P, Huang Y, Guo L, Wang W, Xi C, Lei Y, Luo M, Pan S, Deng X, Zhang WH, Lu C

Abstract
OBJECTIVES: Recent studies have suggested that sexual minorities are more likely to have poor sleep quality. This study aims to explore sleep quality among sexual minority adolescents and examines the association between sexual minority status and sleep quality.
DESIGN: Cross-sectional survey.
SETTING: A total of 506 high schools in seven Chinese provinces.
PARTICIPANTS: A total of 150 822 students in grades 7-12 completed the questionnaires, and 123 459 students who reported being aware of their sexual orientation were included in analyses.
MAIN OUTCOME MEASURES: The Pittsburgh Sleep Quality Index, sexual attraction and school bullying victimisation.
RESULTS: Of the 123 459 students who were analysed, 5.00% self-reported as sexual minorities. Only 26.67% of sexual minority students slept 8 or more hours/day, which is less than their heterosexual peers (35.70%; χ2=130.04, P<0.001). Of the total sample, 22.41% of the students reported poor sleep quality, and this prevalence was significantly higher in sexual minority students than in heterosexual students (32.56% vs 21.87%; χ2=281.70, P<0.001). After controlling for social demographics, lifestyle and depressive symptoms, sexual minority students had higher odds of poor sleep quality (adjusted OR=1.41, 95% CI 1.31 to 1.51) than their heterosexual peers. The indirect effect of school bullying victimisation (standardised β estimate=0.007, 95% CI 0.006 to 0.009) was significant, indicating that school bullying victimisation partially mediated the association between sexual minority status and sleep quality.
CONCLUSIONS: Our study suggested that poor sleep quality was common in sexual minority adolescents, and more attention should be paid to sleep problems in this population. Conducting interventions to reduce school bullying behaviours is an important step to improving sleep quality in sexual minority adolescents. Further, studies are warranted that focus on the risk factors and mechanisms of and interventions for sleep problems in sexual minority adolescents.

PMID: 29282258 [PubMed - in process]

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