Our Performance

Access Indicators

St. Michael's Hospital monitors the time it takes to access many different types of care.

Emergency Indicators

When someone arrives at Emergency, his or her condition is assessed using a five-point scale called the Canadian Emergency Department Triage and Acuity Scale (CTAS). The more serious an injury or illness, the lower the CTAS rating. For example, a serious, traumatic requiring resuscitation might be classified as CTAS 1 while a walk-in patient with a broken finger might be CTAS 5. Wait times are monitored for patients at each level of acuity.

The other component that affects the indicators is whether or not a patient needs to be admitted to hospital. Most Emergency patients receive the care they need and go home but some require ongoing care and are admitted as inpatients. Wait times for each type of patient are monitored.

Emergency Department Lengths of Stay

Ontario’s targets are based on the 90th percentile. This means the maximum amount of time 9 out of 10 patients spend in Emergency being diagnosed, treated or waiting for admission. Most patients spend less time but one out of 10 patients will spend more time. Wait times are calculated from registration through to discharge.

Key Indicators

Non-admitted, high acuity patients

This graph looks at monthly wait times for patients who are not admitted to hospital but have complex conditions requiring more time for diagnosis and treatment. St. Michael's is just over the provincial target but is working hard to reduce wait times.

What is Non-Admit High Acuity EDLOS?


Non admitted, low acuity patients

This graph looks at monthly wait times for patients who are not admitted to hospital and have minor, uncomplicated conditions requiring less time for diagnosis and treatment. St. Michael's wait times are usually below target.

What is Non-Admit Low Acuity EDLOS?


Admitted patients

This graph looks at monthly wait times for patients who are admitted as inpatients after their emergency stays. St. Michael’s continues to work towards a faster transition from emergency to an inpatient bed.

What is Admit EDLOS?


Wait times

These are the wait times for several cancer and joint replacement surgeries, which measures how long patients waited from deciding with the surgeon to proceed with the surgery, to having the surgery done. The table below shows St. Michael’s percentage of patients whose surgery was completed within the provincial target wait time of 9 out of 10 patients being treated. More information

St. Michael's wait times

Surgeries Per cent Time period
Breast cancer 90 Jul. - Sept. 2017
Gastrointestinal cancers 73 Jul. - Sept. 2017
Gynecological cancers 87 Jul. - Sept. 2017
Genitourinary cancers 100 Sept. 2017
Neurological cancers 91 Jul. - Sept. 2017
Prostate cancers 86 Jul. - Sept. 2017
Thyroid and endocrine cancers 100 Apr. - Sept. 2017
Joint replacement
Knee replacement surgery 95 Sept. 2017
Hip replacement surgery 100 Sept. 2017