By Age Group
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 most common forms of IHD which result in hospitalizations are myocardial infarction (heart attack), atherosclerosis (hardening of the arteries) and angina pectoris (chest pain). Diseases of the circulatory system, including IHD, were the leading cause of hospitalizations in Simcoe Muskoka for the five-year period between 2011 and 2015. IHD accounted for more than one-third of all circulatory system disease related hospitalizations during this period of time.
The age-standardized hospitalization rate for IHD in Simcoe Muskoka for all ages and sexes in 2015 was 397 (381.8, 413.0) per 100,000 population, which was significantly higher than the Ontario rate of 319 (315.7, 321.5) per 100,000 population. The standardized morbidity ratio (SMR) for IHD hospitalizations in Simcoe Muskoka compared with Ontario was 1.24 (1.19, 1.29), which means that there was a 24% greater IHD hospitalization experience in Simcoe Muskoka relative to Ontario in 2015.
The IHD hospitalization rates in both Simcoe Muskoka and Ontario declined significantly over the period from 2003 to 2015, with an average decrease in the rates of approximately five per cent per year. The rates in Simcoe Muskoka were significantly higher than the provincial rates each year over this 13-year time period.
In 2015, the age-standardized IHD hospitalization rate among Simcoe Muskoka males was 573 (545.4, 600.3) per 100,000, which was more than twice the female rate of 236 (220.1, 252.8) per 100,000. The IHD hospitalization rate for Ontario was significantly lower than the Simcoe Muskoka rate for both males and females in 2015. The IHD hospitalization rates for males and females in Simcoe Muskoka decreases significantly over the 13-year period between 2003 and 2015.
By Age Group
Hospitalizations for IHD increase significantly with age. The age-specific rate for IHD hospitalizations between 2003 and 2015 (combined) in Simcoe Muskoka was highest among those 75 years and older at 2451 (2406.1, 2496.5) hospital discharges per 100,00 population (75+). The age-specific IHD Hospitalization rates in Simcoe Muskoka were significantly higher than their respective provincial rates for all age groups among adults 20 years of age and older.
For the time period from 2011 to 2015 (combined) in Simcoe Muskoka, hospitalization rates for IHD were significantly lower among those living in the top 40% of neighbourhood income distribution when compared with those living in the bottom 60%.