Table 1: Databases and resources.

Database*	Resources
New Drug Funding Program	Chemotherapy drugs
Activity Level Reporting System	Radiotherapy
OHIP Claims History Database	Diagnostic tests, physician services, chemotherapy visits before 2002, emergency department visits before 2002
Ontario Drug Benefit Program	Outpatient prescription drugs for patients aged ≥ 65 years, long-term care indicator
CIHI Discharge Abstract Database	Inpatient hospital admissions, same-day surgery before 2002
CIHI National Ambulatory Care Reporting System	Chemotherapy visits after 2002, emergency department visits after 2002, same-day surgery after 2002
Continuing Care Reporting System	Stays in complex continuing care facilities
Ontario Home Care Administrative System	Home care before April 2005
Home Care Database	Home care after April 2005

CIHI = Canadian Institute for Health Information, OHIP = Ontario Health Insurance Plan.
*All databases were available through the Institute for Clinical Evaluative Sciences, with the exception of the New Drug Funding Program and Activity Level Reporting System obtained from Cancer Care Ontario.