The relationship among perceived stress,sleep quality,social support and depressive symptoms in female res-idents
Objective To explore whether sleep quality mediates the relationship between perceived stress and de-pressive symptoms and whether social support moderates their relationship.Methods A cross-sectional survey was conduc-ted from October 2021 to December 2021 among 7903 female participants in central China.A self-designed questionnaire was used to collect information on participants'perceived stress,sleep quality and social support.Patient Health Question-naire(PHQ-9)was used to measure depressive symptoms.Pearson correlation analysis was conducted to analyze the corre-lations of study variables,and structural equation model(SEM)was used to analyze the relationships among perceived stress,sleep quality,social support and depressive symptoms.Results The results showed that sleep quality was positively correlated with perceived stress(r=0.300,P＜0.001),social support(r=0.306,P＜0.001)and depressive symp-toms(r=0.425,P＜0.001).Social support was negatively correlated with perceived stress(r=-0.197,P＜0.001)and depressive symptoms(r=-0.432,P＜0.001).Perceived stress was positively correlated with depressive symptoms(r=0.354,P＜0.001).Sleep quality partially mediated the association between perceived stress and depressive symp-toms.The mediating effect of sleep quality on depressive symptoms was 0.102,accounting for 30.82％of the total effect.In addition,social support moderated the association between perceived stress and depressive symptoms(β=-0.100,P＜0.001).The effect of perceived stress on depressive symptoms was weaker when the level of social support was high-er.Conclusion Perceived stress indirectly affects depressive symptoms through sleep quality,and social support moderates the effect of perceived stress on depressive symptoms.In the early prevention and treatment of depression in women,impro-ving sleep quality and social support are effective ways to alleviate perceived stress and depressive symptoms.
Depressive symptomsModerated mediation modelPerceived stressSleep qualitySocial support
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