J Korean Acad Child Adolesc Psychiatry.  2021 Jul;32(3):104-111. 10.5765/jkacap.210004.

Significant Domains of Life Satisfaction That Affect Suicidal Behavior in Adolescents

  • 1Department of Psychiatry, Inha University Hospital, Incheon, Korea
  • 2Incheon Jung-gu Community Mental Health Center, Incheon, Korea
  • 3Department of Nursing, Inha University College of Medicine, Incheon, Korea
  • 4Department of Psychiatry, Seoul National University College of Medicine, Seoul, Korea


Adolescent suicide is a serious national issue in Korea. Recently, life satisfaction has been recognized as a major factor related to this issue. The main purpose of this study was to identify the domains of life satisfaction that affect suicidal behavior in adolescence.
Data were collected from eight middle schools in Incheon, Korea. A total of 1297 students answered questions regarding their demographic characteristics, happiness, self-related life satisfaction domains (appearance, leisure time, physical health, and mental health), depressive symptoms, and suicidal behavior.
In the Spearman correlation analysis, female sex, perceived socioeconomic status (SES), happiness, and all four self-related satisfaction scores showed significant correlations with depression and suicidality. Multivariate regression analysis suggested that suicidality was significantly affected by perceived SES, satisfaction with appearance, mental health satisfaction, and depression. Finally, depression was identified as a partial mediator of the association between mental health satisfaction and suicidality, and a complete mediator of the association between female sex and suicidality.
Perceived SES, satisfaction with appearance, and mental health satisfaction significantly affected students’ suicidality, with or without the effect of depression. Health authorities, educators, and family members must be aware of this to identify adolescents at suicide risk earlier.


Suicide; Satisfaction; Physical appearance; Mental health; Depression; Adolescent
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