Sleep Characteristics in Adolescents with Major Depressive Disorder: Associations with Non-Suicidal Self-Injury and Suicidality
PSYCHIATRY AND CLINICAL PSYCHOPHARMACOLOGY, cilt.36, sa.5, ss.521-534, 2026 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 36 Sayı: 5
- Basım Tarihi: 2026
- Doi Numarası: 10.65801/pcp.3465
- Dergi Adı: PSYCHIATRY AND CLINICAL PSYCHOPHARMACOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
- Sayfa Sayıları: ss.521-534
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Dokuz Eylül Üniversitesi Adresli: Evet
Özet
Background: Sleep disturbances impact outcomes in major depressive disorder (MDD). This crosssectional study evaluated subjective sleep quality and habits in adolescents with MDD and their associations with suicide attempt (SA) and non-suicidal self-injury (NSSI). Methods: Sixty-eight adolescents aged 13-18 years with MDD were classified as NSSI-only, SA-only, and combined. Clinical severity and depressive symptoms were measured with Clinical Global Impression- Severity scale and Children's Depression Rating Scale-Revised (CDRS-R). Self-harm and suicidality were evaluated using Inventory of Statements About Self-Injury and Columbia-Suicide Severity Rating Scale. Pittsburgh Sleep Quality Index (PSQI) and Children's Sleep Habits Questionnaire (CSHQ) assessed pastmonth sleep quality and past-week sleep habits. Results: Participants had poor sleep quality (89.7%) and disturbed sleep habits (83.8%), without group differences. CSHQ scores correlated moderately with lifetime NSSI frequency (r = .36, P = .003), whereas PSQI scores correlated weakly (r = .28, P = .023). PSQI scores were modestly related to pastmonth suicidal ideation severity (r = .28, P = .022). In hierarchical regressions controlling for sedative medications and CDRS-R scores, CSHQ (beta = 0.299, P = .022) and PSQI (beta = 0.248, P = .047) accounted for incremental variance in lifetime NSSI frequency. Conclusion: Sleep problems are common among adolescents with MDD, suggesting a clinical feature rather than a subgroup-specific trait. Sleep disturbance was associated with lifetime NSSI burden beyond depression severity, indicating a clinically relevant assessment domain. Prospective longitudinal studies should clarify temporal and bidirectional relationships with self-harm outcomes.