Predicting Mental Health Hospitalizations Among First Nations Adults in Residential Treatment

Indigenous peoples in Canada experience disproportionately higher rates of hospitalization for mental health and substance use concerns than non-Indigenous populations. Ambulatory care sensitive conditions are community-level markers of mental illness which can theoretically be managed through community-based health services, and therefore should not require urgent care services. Previous mental health related ambulatory sensitive conditions have included psychotic and mood disorders; however, limited research has explored these relationships of increased hospitalization among specific health disorders with Indigenous populations. This study analyzed predictors of prior mental health hospitalizations among a predominately First Nations population seeking residential treatment for substance use. We hypothesized that increased co-morbid mental health concerns would predict increased hospitalizations for mental health concerns, and this relationship would be moderated by higher Adverse Childhood Experience (ACE) scores. Logistic regression showed that for every increase in each reported mental health concern, the odds of prior hospitalization was 1.6 times higher among this sample, although ACEs did not moderate this relationship. Participants with depressive, anxiety-related, psychotic, and personality-related disorders reported proportionally more hospitalization. Although study results suggest ACEs are not a useful predictor of hospitalization, their presence has previously shown to exacerbate co-morbid concerns, and thus, may influence prior hospitalization history indirectly. Further research can explore relationships between exposure to childhood trauma and hospitalization, particularly in consideration of access to tertiary mental health services.