This indicator measures the premature mortality rates of people aged 18 to 74 (deaths per 1,000 people), in Ontario, by material deprivation quintile. Premature mortality is defined as deaths before 75 years of age. The material deprivation quintiles are derived from the Ontario Marginalization Index (ON-MARG) and describe the likelihood that an individual is unable to afford or attain essential goods and services. A lower rate is better.

This indicator measures the average time patients waited for a cardiac surgery or procedure. Wait times were calculated from the day the patient and doctor decided to go ahead with the surgery or procedure, to the day the surgery or procedure was performed. A lower value is better. The wait time is reported for each priority level. Patients are assigned a priority level for surgery or procedure based on their clinical assessment. The indicator is reported based on the institution where the surgery or procedure took place.

There are three cardiac surgeries or procedures reported Online: 

1.A diagnostic cardiac catheterization (CATH), or angiography, is a catheter based diagnostic test that involves selectively injecting x-ray contrast dye into one or more coronary arteries in order to visualize blockages in the arteries and vessels that supply blood to the heart.

2.A percutaneous coronary intervention (PCI), or angioplasty, is a procedure that involves using a catheter to insert a stent that opens blocked blood vessels in the coronary arteries.

3.Coronary artery bypass graft (CABG) is a surgical procedure performed on patients with coronary artery disease to bypass areas of blockage. Blood vessels, most commonly from the legs or chest wall, are grafted onto the heart to allow blood to flow past diseased heart vessels