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KMID : 0605720180240030173
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Journal of the Korean Society of Biological Therapies in Psychiatry
2018 Volume.24 No. 3 p.173 ~ p.183
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The Relationship between Sleep Quality and Depressive Symptoms among University Students : Moderating Effect of the Positive Psychology
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Jung Soo-Hyun
Parkk Jung-Hyun
Yoon Hyung-Jun
Kim Jung-Ho
Kim Nam-Cheol
Kim Sang-Hoon
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Abstract
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Objectives：The aim of study was to estimate the prevalence of poor sleep quality and depressive symptoms as well as to examine the moderating effect of positive psychology on the relationship between poor sleep quality and depressive symptoms among Korean university students.
Methods：A total of 2,338(1,071 male and 1,267 female) university students at seven universities of four cities in Korea were randomly selected to participate in a survey. Data were collected by self-report questionnaires, including Pittsburgh Sleep Quality Index(PSQI), Beck Depression Inventory(BDI), Satisfaction with Life Scale(SWLS), Positive Psychotherapy Inventory(PPTI), and sociodemographic characteristics.
Results：The prevalence was 44.8% for poor sleep quality and 14.4% for depressive symptoms among Korean university students. By moderated regression analysis, the results showed that poor sleep quality(β=0.453, p＜0.001) aggravated depressive symptoms of university students, and life satisfaction(β=-0.087, p＜0.001) and happiness(β=-0.145, p＜0.001) respectively buffered the negative effect of the poor sleep quality on depressive symptoms.
Conclusion：This study showed very high prevalence of poor sleep quality and depressive symptoms among Korean university students. Overall, these findings demonstrates that positive psychology can be effective in the enhancement of subjective and psychological well-being and may help to reduce depressive symptom levels. In the context of public health, positive psychology can be used as preventive, easily accessible and non-stigmatizing tools.
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KEYWORD
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University students, Sleep quality, Depressive symptoms, Positive psychology, Moderating effect
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