Indicator Metadata

CABG

This indicator measures the age-standardized rate of coronary artery bypass graft (CABG) surgery performed on inpatients in acute care hospitals, per 100,000 population age 18 and older.

For further details, please see the General Methodology Notes.

(Total number of discharges for CABG for inpatients age 18 and older ÷ total mid-year population age 18 and older) × 100,000 (age adjusted)

Unit of Analysis: Single admission

Place of residence

Rate - Per 100,000

Age-adjusted

Direct Standardization
Standard Population:
Canada 2011

Description:
Total mid-year population age 18 and older

Description:
Total number of discharges for CABG for inpatients age 18 and older

Inclusions:
1. CABG is identified as the following procedure code recorded in any position of the procedure code fields:

CCP: 48.1^

ICD-9-CM: 36.1

CCI: 1.IJ.76^^

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. Newborn, stillbirth or cadaveric donor records (Admission Category = N, R or S)

2. CABG can be performed in designated cardiac centres only; therefore, procedures reported by facilities without on-site CABG services were excluded from the indicator calculation.

3. Procedures coded as out of hospital and abandoned after onset (Intervention Status Attribute = A or OOH Indicator Flag = Y)

As with other types of surgical procedures, variation in CABG surgery rates can be attributed to numerous factors, including differences in population demographics, physician practice patterns and availability of services. In cases amenable to treatment with less-invasive procedures, percutaneous coronary intervention (PCI), an alternative intervention to improve blood flow to the heart muscle, may be used. Variations in the extent to which PCI is utilized may result in variations in the rate of bypass surgery.

Does not apply to this measure (i.e., there is no predefined preference for the measure score)

Health System Inputs and Characteristics: Health system resources

Not applicable

Benchmarks have not been identified for this indicator.

Cardiac Care Network of Ontario Consensus Panel on Target Setting. Final Report and Recommendations. 2004.

Conigliaro, J. et al. "Understanding Racial Variation in the Use of Coronary Revascularization Procedures: The Role of Clinical Factors." Archives of Internal Medicine 160 (2000): pp. 1329-1335.

Faris, P. D. et al. "Diagnostic Cardiac Catheterization and Revascularization Rates for Coronary Heart Disease." Canadian Journal of Cardiology 20 (2004): pp. 391-397.

Institute for Clinical Evaluative Sciences. Cardiovascular Health and Services in Ontario. Toronto, Ont.: ICES, 1999.

Yap, A. G. et al. "Coronary Artery Bypass Surgery on Small Patients." Journal of Invasive Cardiology 12 (2000): pp. 242-246.

DAD, HMDB

Type of Year:
Fiscal
First Available Year:
2010
Last Available Year:
2016

All provinces/territories

National, Province/Territory, Region

Every year

Web Tool:
Health Indicators E-Publication
URL: http://www.cihi.ca/hirpt/?language=en

Not applicable

Some residents in New Brunswick’s Zone 4 and Zone 5 receive CABG in Quebec under a referral agreement between the 2 provinces. Due to differences in data collection, New Brunswick residents receiving care in Quebec cannot be assigned to their region of residence; thus the rates for these 2 regions are suppressed.

Not applicable

CABG operations can be performed in designated cardiac centres only; therefore, procedures reported by facilities without on-site CABG services were excluded from the indicator calculation.