대학생들의 수면장애와 우울증상: 긍정심리의 조절효과

Abstract

ABSTRACT Sleep Disturbance and Depressive Symptoms among University Students : Moderating Effect of the Positive Psychology Soo Hyun Jung, M.D. Advisor: Prof. Sang Hoon Kim, M.D., Ph.D. Department of Medicine, Graduate School of Chosun university

Objective : The study aim was to estimate the prevalence of sleep disturbance and depressive symptoms as well as to examine the moderating effect of positive psychology on the relationship between sleep disturbance 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 sleep disturbance and 14.4% for depressive symptoms among Korean university students. By moderated regression analysis, the results showed that sleep disturbance (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 sleep disturbance on depressive symptoms. Conclusion : This study showed very high prevalence of sleep disturbance 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. KEY WORDS : University students · Sleep disturbance · Depressive symptoms · Positive psychology · Moderating effect