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Introduction Sleep changes during adolescence, including “eveningness” or a preference for staying up late, decreased sleep hours, increased daytime sleepiness and irregular sleep patterns, can contribute to adolescent sleep disturbances, such as insomnia, daytime fatigue, and other sleep problems. The goals of the study were; 1) to examine the proportion of adolescents who experienced each type of sleep disturbances based on six sleep problems; and 2) to examine the association between six types of sleep disturbances and concurrent depression, suicide ideation, and suicide attempt at 12th grade. Methods Using the data from the Developmental Pathways Project (DPP), a community-based study in adolescence, total 425 students were included. Sequential logistic regression analyses were performed to examine the association between each sleep item and depression, suicide ideation, and lifetime history of suicide attempt. Results The most frequently reported sleep problems were ‘overtired without good reason (49.9%)’, ‘sleeps less than most kids (46.8%)’, and ‘sleep more than most kids (46.7%)’. After adjusting for depressive symptoms at baseline, 12th grade reports of ‘overtired without good reason’ (OR = 1.63, 95% CI = 1.22 - 2.17), ‘sleep less’ (OR = 2.03, 95% CI = 1.51 - 2.74), ‘trouble sleeping’ (OR = 1.50 95% CI = 1.10-2.06, p &amp;lt; .05), ‘nightmare’ (OR = 1.51, 95% CI = 1.12-2.02, p &amp;lt; .01) were significantly associated with depression. For suicide ideation (SI) and suicide attempt, ‘nightmare’ (OR = 1.68, 95% CI = 1.15 - 2.48; OR = 2.43 95% CI = 1.30 - 4.53, respectively) was significantly and positively associated with SI and having history of suicide attempt. Conclusion ‘Nightmare’ has the strongest association with depression, suicide ideation, and suicide attempt. To disentangle the mechanism of the association between nightmares and mental health issues, longitudinal studies examining causal or bidirectional relationships of the mechanism are warranted. Support National Institutes of Mental Health and Drug Abuse, Nesholm Family Foundation, Seattle Children’s Hospital Outcomes Research Steering Committee, Loeb Family Foundation, Seattle Children’s Research Institute, University of Washington Office of the Provost, AETNA Foundation.

0394 Differential Role of Sleep Problems on Depression and Suicide in Community Adolescents