Chest
Clinical Investigations: AsthmaPrevalence of Physician-Diagnosed Asthma in Saskatchewan, 1981 to 1990
Section snippets
Saskatchewan Health Databases
The Provincial Government of Saskatchewan provides universal health coverage to most of the 1.1 million residents of the province. Each resident is registered with the Saskatchewan Department of Health and receives a Health Services Card that contains a Health Services Number (HSN), a nine-digit unique identifier. Information about the covered population, including HSNs, name, sex, date of birth, and coverage initiation date, is electronically stored in a registry, the Health Insurance
Changes Over Time
As shown in Figure 1, increasing trends in asthma prevalence were observed in all age groups from 1981 to 1990. In children ≤4 years old, the prevalence rate increased from 3.0% in 1981 to 5.1% in 1990. The trend, after adjusting for sex, was statistically significant (p<0.001). During the study period (1981 to 1990), prevalence rates increased significantly from 2.6 to 4.4% in children 5 to 14 years old, 1.2 to 2.2% in young adults 15 to 34 years old, and 1.4 to 1.9% in adults 35 to 64 years
Discussion
In our study, increases were observed in asthma prevalence in children and adult populations in Saskatchewan from 1981 to 1990. The prevalence of asthma was greater in children than in the adult populations. Male subjects had a greater prevalence of asthma than did female subjects among children <14 years, but this pattern was reversed in adults, with a higher prevalence of asthma among the female population.
Manfreda et al9 used the health insurance plan database to examine the trends in asthma
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This study is based in part on data provided by the Saskatchewan Department of Health. The interpretations and conclusions contained herein do not necessarily represent those of the Government of Saskatchewan Department of Health. The research was supported by an Establishment Grant from the Health Services and Utilization Commission, Saskatchewan, Canada.