Note: Detailed data tables are available to the public from OASIS, upon request.
Individuals with asthma were identified using a previously validated health administrative data case definition for asthma:
≥ 2 outpatient claims in 2 consecutive years or ≥ 1 hospitalizations(s) for asthma with a sensitivity of 84 per cent and a specificity of 76 per cent when compared to a clinical reference standard.1,2
1To T, Cicutto L, Dell S, Dick PT, MacLusky I. Case verification of children with asthma in Ontario. Pediatric Allergy and Immunology 2006; 17:69-76.
2Gershon AS, Wang C, Guan J, Vasilevska-Ristovska J, Cicutto L, To T. Identifying patients with physician diagnosed asthma in health administrative databases. Can Respir J. 2009 Nov-Dec;16(6):183-8.
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Users of our statistics will include the following disclaimer and acknowledgement in citations of parts or all of the asthma statistics provided by OASIS:
“This presentation (as appropriate) uses asthma statistics reported by the Ontario Asthma Surveillance Information System (OASIS) and data provided by the Institute for Clinical Evaluative Sciences (ICES), Ontario“