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This page is an AI-assisted Turkish summary of the study presented at the 26th World Congress of Psychiatry. The study belongs to the presenting authors; please refer to the original source when citing it.

EV1261

Effects of cognitive behavioural therapy on sleep outcomes in adolescents with insomnia: an updated systematic review and meta-analysis

IMPACT OF COGNITIVE BEHAVIORAL THERAPY ON SLEEP OUTCOMES IN ADOLESCENTS WITH INSOMNIA: AN UPDATED SYSTEMATIC REVIEW AND META-ANALYSIS

Cognitive behavioural therapy for insomnia significantly improves insomnia severity, sleep efficiency and total sleep time in adolescents at the end of treatment, but only the benefit in insomnia severity is maintained at follow-up.

The aim of the study was to evaluate the efficacy of cognitive behavioural therapy for insomnia (CBT-I) in adolescents in terms of insomnia severity, sleep onset latency (SOL), total sleep time (TST) and sleep efficiency (SE). This systematic review and meta-analysis was conducted in accordance with PRISMA guidelines. PubMed, Embase and the Cochrane Library were searched from inception to March 2026; 10 randomized controlled trials (RCTs) involving 1,359 adolescents were included (669 participants in the CBT-I group and 690 in the control group). Data were pooled using a random-effects model, and treatment effects were expressed as standardized mean differences (SMDs) with 95% confidence intervals (CIs). At the end of treatment, the SMD was -0.974 for insomnia severity (95% CI -1.39 to -0.55; p<0.0001), -1.099 for SOL (95% CI -2.23 to 0.042), 0.52 for TST (95% CI 0.005 to 1.034; p=0.048) and 0.483 for SE (95% CI 0.234 to 0.732; p=0.0001); sleep onset latency did not differ significantly between groups. At follow-up, the benefit in insomnia severity was maintained, with an SMD of -0.697 (95% CI -1.098 to -0.296; p=0.0007), whereas results remained nonsignificant for SOL (SMD -0.229; 95% CI -0.569 to 0.110), TST (SMD 0.063; 95% CI -0.149 to 0.275) and SE (SMD 0.223; 95% CI -0.106 to 0.551). The control condition in the included studies was most commonly a waitlist (6 studies), followed by no treatment (2), health education (1), and sleep hygiene plus CBT-D (1). In conclusion, CBT-I appears to be an effective nonpharmacological intervention for adolescent insomnia, but larger, high-quality RCTs with longer follow-up are needed to clarify its long-term efficacy and its role as a first-line treatment.

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