Overall
By Sex
By Age Group
By Income
Overall
Ischaemic Heart Disease or IHD is characterized by a reduction in blood supplied to the heart caused by disease of the blood vessels supplying the heart muscle. The two most common fatal forms of IHD are myocardial infarction (heart attack) and atherosclerosis (hardening of the arteries). IHD was the leading cause of death in Simcoe Muskoka between 2011 and 2015 and was listed as the primary cause for more than 3,000 deaths, which accounted for 14 per cent of all deaths during that five-year period.
The age-standardized mortality rate for IHD in Simcoe Muskoka for all ages and sexes in 2015 was 100.3 (92.6, 108.1) per 100,000 population, which was significantly higher than the Ontario rate of 88.5 (87.0, 90.0) per 100,000 population.
The IHD mortality rates in both Simcoe Muskoka and Ontario declined significantly over the sixteen years from 2000 to 2015, with an average annual decrease of more than four per cent per year. There was a small but significant difference in the IHD mortality experience in Simcoe Muskoka relative to Ontario during this 16-year time period. The standardized mortality ratio (SMR) for IHD mortality was 1.06 (1.04, 1.08), which means that there was a six per cent higher IHD mortality experience in Simcoe Muskoka when compared with the province as a whole from 2000 to 2015.

By Sex
In 2015, the age-standardized mortality rate for IHD among Simcoe Muskoka males was 131.5 (118.0, 145.1) per 100,000, which was nearly twice the female rate of 76.0 (66.7, 85.2) per 100,000.
The IHD mortality rates decreased significantly for both Simcoe Muskoka males and females from 2000 to 2015. The IHD mortality rates among males have been substantially higher than the female rates over this entire 16-year time period.

By Age Group
The risk of dying from IHD increases exponentially with age. The age-specific rate of IHD deaths between 2011 and 2015 (combined) in Simcoe Muskoka was highest among those 75 years and older at 1030 (986,1076) deaths per 100,000. This was more than five-times the rate for those 65 to 74 years of age and more than 15 times the rate for those 45 to 64 years of age. The age-specific Simcoe Muskoka rates were marginally, but significantly, higher than the provincial rates for older seniors (75+ years).

By Income
For the time period from 2011 to 2015 (combined) in Simcoe Muskoka, IHD mortality rates were highest among those living in areas with the highest prevalence of low-income and lowest among those living in areas with the lowest prevalence of low-income (140 (126,153) deaths per 100,000 vs. 82 (73,91) deaths per 100,000).
