Data Sets

Below is a brief description of the data sets that will be available to authorized researchers once they have completed the application process. The OHDP Application Support team will work closely with researchers to identify their data requirements, and will accordingly facilitate access to the corresponding data set. If these data sets do not meet research requirements, we request researchers to reach out to We will add additional data sets to the platform over time. 

  •  Continuing Care Reporting System (CCRS)

CCRS at the Canadian Institute for Health Information (CIHI) is a national database that contains demographic, administrative, clinical and resource utilization information on individuals who receive continuing care services in hospitals or long-term care homes in Canada.

  •   Discharged Abstract Database (DAD)

DAD at the Canadian Institute for Health Information (CIHI) is a national database designed to capture administrative, clinical, and demographic information on hospital discharges (including deaths, sign-outs and transfers). Some provinces and territories also use the DAD to capture day surgery.

  •  Electronic Canadian Triage & Acuity Scale (eCTAS)

eCTAS aims to improve patient safety and quality of care by establishing an electronic triage decision support tool that standardizes that application of national triage guidelines (CTAS) across Ontario; and to enhance accountability through the timely collection and analysis of triage data. It covers 120+ hospitals in Ontario, 90%+ of emergency department patient volumes, and triages over 400,000 patients per month.

  •  Ontario Drug Benefit

ODB contains Ontario Drug Benefit Program information, including recipients, payment, claims, and pharmacy and practitioner information. The ODB Program provides drug benefits for Ontarians aged 65 and older, residents of long-term care homes, homes for special care, recipients of professional home services and social assistance and recipients of the Trillium Drug Program.

  •  Ontario Health Insurance Plan Claims (OHIP Claims) 

OHIP Claims is a physician billing claims database that includes information such as the patient health number, date of patient encounter, physician billing code, and schedule of benefit code.

  •  Ontario Laboratory Information System COVID-19 (OLIS C-19)

OLIS-C19 is a subset of the OLIS information repository that contains lab test orders and results from hospitals, community labs and public health labs specific to COVID-19.

  •  Ontario Mental Health Reporting System (OMHRS) 

OMHRS analyzes and reports on information submitted to CIHI about all individuals receiving adult mental health services in Ontario, as well as some individuals receiving services in youth inpatient beds and selected facilities in other provinces. OMHRS includes information about mental and physical health, social supports and service use, as well as care planning, outcome measurement, quality improvement and case-mix funding applications.

  •  National Ambulatory Care Reporting System (NACRS)

NACRS at the Canadian Institute for Health Information (CIHI) is a national database designed to capture information on client visits to facility and community-based ambulatory care. Data about visits is collected at the time of service in participating facilities. Data elements in NACRS can be grouped according to five categories—demographic, clinical, administrative, financial and service-specific—with information on discharges, deaths and transfers within a fiscal year (April 1 to March 31).

  •  Registered Persons Database (RPDB)

RPDB contains information on persons registered under the Ontario Health Insurance Plan (OHIP) and those who are eligible for the Ontario Drug Program. It is a collection of organized personal demographic information that can be retrieved using an individual’s Health Number.



Date modified: 2020-08-26