PROJECT TITLE Epidemiologic and Machine Learning Approaches to Frame Suicide Prevention Strategies Among Juvenile Justice Youth PROJECT SUMMARY / ABSTRACT Suicide is the second leading cause of death among youth aged 10-24 years in the U.S. One population found to have higher rates of suicidal behavior is youth incarcerated in the juvenile justice system. While progress has been made to reduce suicide for youth within juvenile correctional facilities, minimal consideration has been given to the risk for suicide in youth after incarceration. Previously incarcerated youth face numerous challenges reintegrating back into the community which can increase their risk for suicidal behavior. Estimates further suggest that 60% to 80% of youth involved in the justice system have significant mental health issues, and time spent in the system can exacerbate these conditions. The unmet need for mental health services by youth involved with the justice system is also a serious problem. Despite the recognized risk in this vulnerable population, evidence-based suicide prevention strategies are not integrated as part of routine reentry services for youth released from confinement. Even less is known about successful approaches to implement these strategies in juvenile justice systems. To address this gap, the proposed study uses innovative machine learning techniques to develop a risk prediction model incorporating youth characteristics and contextual factors associated with confinement (violence, victimization, segregation /isolation practices, health care services) to more accurately assess suicide risk in youth following incarcerated. Guided by these findings and a structured implementation science framework, this proposal will also conduct a pre-intervention assessment with key stakeholders to validate the utility of the machine learning model to inform intervention selection. Consideration will be given to potential facilitators and barriers to integrating the model into practice, and when, how, and where to intervene in the juvenile justice process. Achieving the aims of this proposed study will provide targeted intervention recommendations for suicide prevention among at-risk youth in the juvenile justice system. This proposal will also support the training of Dr. Ruch, who is devoted to a research career to reduce suicide in youth involved with justice system. Dr. Ruch’s training plan includes: (1) acquiring skills in machine learning and forecast modeling techniques to more accurately identify suicide risk and inform targeted preventions for youth in the justice system (2) enhancing knowledge of suicide prevention interventions, including health service systems to understand how health care practices and policies may facilitate or impede intervention for youth involved with the justice system and (3) strengthening skills in implementation science and advanced qualitative research methods to bridge the gap between research and practice. This line of inqui...