Maclean MJ, et al. - Via a longitudinal, population-based record-linkage study of all children in Western Australia with birth records between 1990 and 2009, the experts discovered mental health outcomes for children with a history of child protection system involvement, accounting for pre-existing adversity, and investigated alteration in risk across diagnostic groupings and child protection subgroups. Children with substantiated maltreatment had a greater prevalence of mental health events and diagnoses, in comparison with children without child protection contact. All maltreatment types were correlated with an almost twofold to an almost threefold raised hazard for mental health events, following background risks adjustment. Mental health events were raised across all child protection groups, ranging from HR as 3.54 to 2.31 for children who had accessed care and for unsubstantiated allegations, respectively. Maternal mental health, aboriginality, young maternal age, and living in socially disadvantaged neighborhoods had correlations with a heightened probability of mental health events. The gain differed across diagnostic categories, with especially increased risk for personality disorder, and frequent comorbidity of mental health and substance abuse disorders. Hence, young people who had been involved in the child protection system were at heightened risk for mental health events and diagnoses. These conclusions highlighted the significance of services and support to improve mental health outcomes in this vulnerable population. Adversities in childhood in addition to genetic or environmental vulnerabilities leading from maternal mental health concerns also contributed to young people’s mental health outcomes, inferring a role for broader social supports and early intervention services in addition to targeted mental health programs.