COVID-19 positivity rates, hospitalizations and mortality of adults with and without intellectual and developmental disabilities in Ontario, Canada.

Background: Across and within countries there is a need to understand how the COVID-19 pandemic has impacted populations of individuals with intellectual and developmental disabilities (IDD).

Objective: Rates of COVID-19 positivity for adults with IDD, including Down syndrome, relative to adults without IDD in Ontario, Canada were compared. Health profiles and case-based rates of hospitalizations, intensive care unit admissions, and mortality within 30 days of testing positively were compared for those with IDD, including Down syndrome, versus those without IDD.

Emergency department visits and use of outpatient physician services by adults with developmental disability and psychiatric disorder.

Objective: To compare the emergency department (ED), primary, and psychiatric care visit rates associated with the presence and absence of a developmental disability (DD) and a mental illness.

Method: This is a population-based study comparing Ontario adults, with and without DDs and mental illnesses, in terms of rates of primary, psychiatric, and ED care, from April 2007 to March 2009.

Results: In Ontario, 45% of adults with a DD received a psychiatric diagnosis during a 2-year period, and 26% of those with a psychiatric diagnosis were classified as having a serious mental illness (SMI), compared with 8% of those with a psychiatric diagnosis but no DD.

A comparison of medical and psychobehavioral emergency department visits made by adults with intellectual disabilities.

Study Objective. We describe and contrast medical to psychobehavioral emergency visits made by a cohort of adults with intellectual disabilities. Methods.

Dual diagnosis: A national study of psychiatric hospitalization patterns of people with developmental disability.

Objective: To report national demographics and diagnostic profiles of people with developmental disability hospitalized for psychiatric reasons, and to contrast results to psychiatric hospitalizations among patients with no comorbid developmental disability.

Method: People with developmental disability across Canada were identified using data administered by the Canadian Institute for Health Information. Among this cohort of people with developmental disability, records of hospitalization for psychiatric reasons were aggregated for the 2005/06 fiscal year (April 2005 to March 2006).