Year: 2026
Type: review
Study design: Systematic Review
Abstract: This study aimed to systematically review the association between sleep-related factors and depression among Korean adolescents.A systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines.Original articles published between 2015 and 2025 were identified through RISS, KCI, KoreaMed and ScienceON.Studies examining the direct association between sleep-related factors and depression among Korean middle and high school students were included.After applying the inclusion and exclusion criteria, nine studies were selected for the final review.All included studies reported that at least one sleep-related factor was significantly associated with depression or depressive symptoms.Short sleep duration, poor sleep quality, insufficient sleep, insomnia, excessive daytime sleepiness, later bedtime and evening chronotype were consistently associated with increased depressive symptoms.Although female adolescents generally showed higher levels of depression than males, findings regarding gender differences in the association between sleep and depression were inconsistent across studies.Sleep-related factors were significantly associated with depression among Korean adolescents, suggesting that adequate sleep may play an important role in promoting adolescent mental health.Further longitudinal studies are needed to clarify the relationship between sleep and depression and to examine whether gender-specific approaches are warranted.
Author: Ho Eun Hwang
Language: English
Topic: Sleep and related disorders
Subfield: Experimental and Cognitive Psychology
Field: Psychology
Domain: Social Sciences
Open Access status: bronze
OpenAlex ID: W7224137209