Long-Stay Psychiatric Inpatients With and Without Intellectual and Developmental Disabilities: An Ontario Population-Based Study: Patients hospitalisés pour de longs séjours en psychiatrie avec ou sans déficiences intellectuelles et développementales,: Une étude fondée sur la population de l’Ontario

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ObjectivePatients with intellectual and developmental disabilities (IDDs) and psychiatric disorders are at higher risk for prolonged hospitalisations. The aim of this study was to examine the prevalence of IDD among long-stay inpatients in Ontario psychiatric beds, and compare the demographic and clinical profiles of long-stay inpatients with and without IDD.MethodsThis Ontario population-based cross-sectional study used linked health administrative databases. All patients over 18 years of age occupying a non-forensic psychiatric inpatient bed in Ontario on September 30th, 2023 were included in the analysis. We examined prevalence of IDD among patients with a length of stay (LOS) ≥ 365 days ('long-stay patients'). Standardised differences were used to compare demographic, clinical, functional, and health care utilisation characteristics between patients with and without IDD.ResultsOf the 1,466 long-stay patients in an Ontario non-forensic psychiatric inpatient bed, 22.0% had IDD. They were younger (mean age 44.3 vs. 47.6) and a higher proportion were male (64.3% vs. 50.1%). In the 2 years prior to admission, a higher proportion of long-stay patients with IDD had a psychotic disorder (73.3% vs. 54.0%), and they had a higher median number of ED visits (5 vs. 3). Long-stay inpatients with IDD were more likely to have difficulty with activities of daily living (39.8% vs. 15.0%), moderate/severe cognitive impairment (63.0% vs. 29.9%) and fewer social contacts in place to support discharge (59.3% vs. 48.6%). While in hospital, a greater proportion of long-stay patients with IDD were subject to restraints (12.4% vs. 8.0%) and seclusion (20.2% vs. 11.2%).ConclusionsAdults with IDD account for more than one in five long-stay psychiatric inpatients and have unique needs including greater cognitive impairment and difficulty caring for themselves. Successful transitions out of hospital require specialised resources and cross-sectoral collaboration.

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