Family physician count and service provision in Ontario and Alberta between 2005/06 and 2017/18: a cross-sectional study
McDonald T, Schultz SE, Green LA, Lethebe BC, Glazier RH. CMAJ Open. 2023; 11(6):E1102-8. Epub 2023 Nov 28.
Objective — To assess whether estimates of survey structured interview diagnoses of mood and anxiety disorders were concordant with diagnoses of these disorders obtained from health administrative data.
Methods — All Ontario respondents to the 2012 Canadian Community Health Survey- Mental Health (CCHS-MH) were linked to health administrative databases at ICES (formerly known as the Institute for Clinical Evaluative Sciences). Survey structured interview diagnoses were compared with health administrative data diagnoses obtained using a standardized algorithm. We used modified Poisson regression analyses to assess whether sociodemographic factors were associated with concordance between the two measures.
Results — Of the 4157 Ontarians included in our sample, 20.4% had either a structured interview diagnosis (13.9%) or health administrative diagnosis (10.4%) of a mood or anxiety disorder. There was high discordance between measures, with only 19.4% agreement. Migrant status, age, employment, and income were associated with discordance between measures.
Conclusions — Our findings indicate that previous estimates of the 12-month prevalence of mood and anxiety disorders in Ontario may be underestimating the true prevalence, and that population-based surveys and health administrative data may be capturing different groups of people. Understanding the limitations of data commonly used in epidemiologic studies is a key foundation for improving population-based estimates of mental disorders.
Edwards J, Thind A, Stranges S, Chiu M, Anderson KK. Acta Psychiatr Scand. 2020; 141(4):385-95. Epub 2019 Dec 28.
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