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Diabetes Prevalence and Incidence
Prevalence
Incidence
Prevalence As part of the Canadian Community Health Survey (CCHS), respondents were asked if they had been diagnosed with certain health conditions by a health professional that were expected to last six months or longer. In 2009/10, 5% (4.09%, 6.3%) of Simcoe Muskoka residents (12+) reported having diabetes. This was significantly lower than the provincial self-reported diabetes prevalence rate of 7% (6.4%, 7.3%). There was an increasing trend in self-reported diabetes prevalence in Simcoe Muskoka between 2000/01 and 2007/08 before declining significantly in 2009/10. The trend in self-reported diabetes prevalence for Ontario as a whole has continued with an increasing trend since 2000/01 (see figure one). Figure One
The Institute for Clinical Evaluative Sciences (ICES), an independent Ontario research organization, published estimates of diabetes prevalence at both the provincial and regional level on their inTool website. Existing diabetes cases were identified using the Ontario Diabetes Database (ODD). Estimates were produced for the 1995/96 through to the 2004/05 fiscal years. In the 2004/05 fiscal year, the age-standardized prevalence rate of diabetes for all ages and both sexes in Simcoe County was 6.2 (6.1, 6.3) per 100 persons and in Muskoka it was 5.9 (5.7, 6.1) per 100 persons. Both of these prevalence rates were significantly lower than the Ontario diabetes prevalence rate of 8.4 per 100 persons. There was a significant upward trend in the diabetes prevalence rates in Simcoe County, Muskoka and Ontario between the 1995/96 and 2004/05 fiscal years. Over this 10 year period the annual percentage increase in diabetes prevalence in Simcoe County was 3.1% (2.9%, 3.4%) per cent and 3.3% (2.8%, 3.9%) in Muskoka. The increase in the Ontario diabetes prevalence rates was steeper than both Simcoe County and Muskoka for the same time period with a 5% (4.9%, 5.1%) annual increase (see figure two). Figure Two
Incidence
The rate of new diabetes cases (also called the incidence rate) provides a measure of the risk of developing diabetes over a given period of time. This is different from the diabetes prevalence rates presented above, which provide a measure of how wide spread diabetes is over a given period of time.
ICES also published diabetes incidence rates at both the provincial and regional levels on their inTool website. New (incident) cases of diabetes were also identified using the Ontario Diabetes Database (ODD).
In the 2004/05 fiscal year, the age-standardized diabetes incidence rate in Simcoe County for all ages and both sexes was 5.8 (5.5, 6.0) per 1,000 persons and in Muskoka District it was 5.1 (4.5, 5.8) per 1,000 persons. This was significantly lower than the Ontario diabetes incidence rate of 8.1 per 1,000 persons.
The diabetes incidence rates in Simcoe County and Muskoka District have remained relatively flat over the ten year period between 1995/96 and 2004/05 fiscal years. The trend in Ontario’s diabetes incidence rates increased significantly over the ten year period with a 3% (2.1%, 3.6%) average annual increase (see figure three).
Figure Three 
Page Last Modified: Tuesday, 06 March 2012.
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