Table 3.

Characteristics of data sources used to measure patterns of colorectal cancer care in Canada*

Percentage of studies	Data source	Data type	Population coverage	Patient data		Health services data
				Date of diagnosis	Stage at diagnosis	Surgery	Radiotherapy	Chemotherapy	Postdiagnosis surveillance	End of life
18%	Multiple provincial registry data linked†	Registry linked to chart review or EHRs	Multiple provinces	√	√	√	√	√	√
18%	British Columbia Cancer Agency	Registry linked to medical insurance claims	Province	√	√	√	√	√
18%	CancerCare Manitoba	Registry linked to medical insurance claims	Province	√	√	√	√	√
18%	Alberta Cancer Registry linked	Registry linked to EHRs, hospital discharge records, or other administrative records	Province	√	√	√		√
18%	Single institutions†	Registry linked to medical records	Institution	√	√	√	√	√	√
9%	Ontario Cancer Registry linked	Registry linked to pathology reports	Province	√	√	√

* EHR = electronic health record.

† Availability of health services data may vary by province or institution.