Korean Journal of Biological Psychiatry (생물정신의학)

The Korean Society of Biological Psychiatry (대한생물정신의학회)
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The Effect of Circadian Types and Depressive Mood on Internet Addiction in Korean College Students

대학생의 일주기유형과 우울한 기분이 인터넷 중독에 미치는 영향

  • Oh, Kyu Soo (Department of Psychiatry, St. Andrew's Hospital) ;
  • Lee, Hye-Kyung (Department of Nursing, College of Nursing and Health, Kongju National University) ;
  • Lee, Kounseok (Department of Psychiatry, St. Andrew's Hospital)
  • 오규수 (성안드레아병원 정신건강의학과) ;
  • 이혜경 (국립공주대학교 간호학과) ;
  • 이건석 (성안드레아병원 정신건강의학과)
  • Received : 2016.09.13
  • Accepted : 2016.09.26
  • Published : 2016.11.30
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Abstract

Objectives The purpose of this study was to investigate the relationships among circadian types, depressive mood and internet addiction and to identify the mediating effect of depressive mood between circadian types and internet addiction in Korean College Students. Methods A total of 2632 participants completed questionnaires, which included the Korean translation of the Composite Scale of Morningness (CSM), the Patient Health Questionnaire (PHQ-9), and the Korean version of the Internet Addiction Test (KIAT). Statistical analyses were done using correlation analysis, analysis of covariance and multiple linear regression. Results The CSM score was negatively associated with the PHQ-9 score (r = -0.226, p < 0.001) and the KIAT score (r = -0.218, p < 0.001). The eveningness group showed higher scores in depressive mood and internet addiction than the morningness group (p < 0.001). Depressive mood showed a partial mediating effect between circadian types and internet addiction (${\beta}=0.255$, p < 0.001). Conclusions Internet addiction was associated with circadian types and depressive mood. These results suggest that depression and circadian rhythm management would contribute to the prevention of internet addiction.

Keywords

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