ºìÁì½í¹Ï±¨

Close search bar

Hospitalized Heart Attacks

This indicator measures the age-standardized rate of new acute myocardial infarction (AMI) events admitted to an acute care hospital for the population age 18 and older.

Lower rates are desirable.

Data updated:
Data availability: to (fiscal years)
Geographic coverage
All provinces/territories
Reporting level
National, Province/Territory, Region, Neighbourhood Income Quintile
Calculation

(Total number of new AMI events for persons age 18 and older ÷ Total mid-year population age 18 and older) × 100,000 (Age-adjusted)

Unit of Analysis: Single admission

Denominator

Total mid-year population age 18 and older

Numerator

Cases that are new AMI events admitted to an acute care hospital, age 18 and older.

A new event is defined as a first-ever hospitalization for an AMI or a recurrent hospitalized AMI occurring more than 28 days after the admission for the previous event in the reference period.

Download CSV Expand/collapse all All accordions expanded

Name

Hospitalized Heart Attacks

Short/Other Names

Hospitalized Acute Myocardial Infarction Event

Description

This indicator measures the age-standardized rate of new acute myocardial infarction (AMI) events admitted to an acute care hospital for the population age 18 and older.

A new event is defined as a first-ever hospitalization for an AMI or a recurrent hospitalized AMI occurring more than 28 days after the admission for the previous event in the reference period.

For further details, please see the General Methodology Notes (PDF).

Rationale

AMI is one of the leading causes of morbidity and death. Measuring its occurrence in the population is important for planning and evaluating preventive strategies, allocating health resources and estimating costs. From a disease surveillance perspective, there are three groups of AMI events: non-diagnosed events, fatal events occurring outside the hospital and events admitted to acute care hospitals. Although AMIs admitted to a hospital do not reflect all AMIs in the community, this information provides a useful and timely estimate of the disease occurrence in the population.

Interpretation

Lower rates are desirable.

HSP Framework Dimension

ºìÁì½í¹Ï±¨ system outcomes: Improve health status of Canadians

Areas of Need

Not applicable

Targets/Benchmarks

Not applicable

Available Data Years

to (fiscal years)

Geographic Coverage

  • All provinces/territories

Reporting Level/Disaggregation

  • National
  • Province/Territory
  • Region
  • Neighbourhood Income Quintile

Indicator Results

Web Tool:

PDF:
Accessing Indicator Results on Your ºìÁì½í¹Ï±¨ System: In Depth (PDF)

Update Frequency

Every year

Latest Results Update Date

Updates

Not applicable

Description

(Total number of new AMI events for persons age 18 and older ÷ Total mid-year population age 18 and older) × 100,000 (Age-adjusted)

Unit of Analysis: Single admission

Type of Measurement

Rate - per 100,000

Denominator

Description:

Total mid-year population age 18 and older

Numerator

Description:

Cases that are new AMI events admitted to an acute care hospital, age 18 and older.

A new event is defined as a first-ever hospitalization for an AMI or a recurrent hospitalized AMI occurring more than 28 days after the admission for the previous event in the reference period.

Inclusions:

  1. AMI present on admission — ICD-10-CA: I21, I22 coded as diagnosis type (1) [type (C) for Quebec data only] or [type (M), (W), (X) or (Y), but not also as a diagnosis type (2)]
  2. Age at admission 18 years and older
  3. Sex recorded as male or female
  4. Admission to an acute care institution (Facility Type Code = 1)

Exclusions:

  1. Records with an invalid health card number
  2. Records with an invalid code for province issuing health card number
  3. Records with an invalid admission date
  4. Cadaveric donor or stillbirth records (Admission Category Code = R or S)
  5. AMI admissions within 28 days after the admission date of a previous AMI hospitalization
  6. Patients with medical assistance in dying (MAID) (Discharge Disposition Code = 73)

Method of Adjustment

Direct standardization

Standard Population:
Canada 2011

Adjustment Applied

Age-adjusted

Geographic Assignment

Place of residence

Data Sources

  • DAD
  • HMDB

Caveats and Limitations

Not applicable

Trending Issues

Not applicable

Comments

This indicator includes all new hospitalized AMI events in the reference period, encompassing first-ever and recurrent AMIs. A person may have more than one AMI event in the reference period. AMI events not admitted to an acute care hospital and in-hospital AMIs are not included in this indicator.

Myocardial infarction is labelled as acute with a stated duration of four weeks (28 days) or less in ICD-10-CA and eight weeks or less in ICD-9/9-CM. Therefore, a 28-day period to define a new AMI event is applicable to the records coded in ICD-10-CA only.

Indicator results are also available on

References

Heart and Stroke Foundation of Canada. The Growing Burden of Heart Disease and Stroke in Canada 2003. Available at . Accessed August 24, 2024.

Manuel DG, Lim JJY, Tanuseputro P, et al. How many people have had a myocardial infarction? Prevalence estimated using historical hospital data. BMC Public ºìÁì½í¹Ï±¨. 2007; 7:174.

How to cite:

Canadian Institute for ºìÁì½í¹Ï±¨ Information. Hospitalized Heart Attacks . Accessed April 19, 2025.

If you would like ºìÁì½í¹Ï±¨information in a different format, visit our Accessibility page.