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Overview

The Ontario Trauma Registry (OTR) identifies, describes and quantifies trauma injuries in Ontario. 

Financed by the Ontario Ministry of ºìÁì½í¹Ï±¨ and Long-Term Care, the OTR comprises three data sets: the Minimum Data Set (MDS), the Comprehensive Data Set (CDS) and the Death Data Set (DDS). Read more about each of these data sets by selecting the Data Coverage tab below.

Find out more about trauma and injuries.

Data Source

The OTR is composed of three distinct data sets:

• MDS data comes from the Discharge Abstract Database (DAD).
• CDS data comes from 11 lead trauma facilities in Ontario.
• DDS data comes from the Office of the Chief Coroner for Ontario.

Data Coverage

The OTR is composed of three distinct data sets:

• The MDS contains demographic, diagnostic and procedural data on all admissions to acute care hospitals due to injury in Ontario.
• The CDS contains detailed data on patients hospitalized in 11 lead trauma facilities in Ontario due to major trauma, including demographic, pre-hospital and hospital care, and patient outcomes information.
• The DDS contains data on all deaths in Ontario due to injury, including demographic data, cause of death, injury details, motor vehicle crash information and factors contributing to death (such as alcohol).

Data Availability

Data is available for the following fiscal years:

• Most recent year:
  • CDS: 2023–2024
  • MDS: 2010–2011
  • DDS: 2006–2007
• Next release:
  • CDS: 2024–2025 (July 2025)
  • DDS: To be determined
• Historical series:
  • MDS: 1994–1995 to 2009–2010
  • CDS: 1999–2000 to 2022–2023
  • DDS: 1986–1987 to 2005–2006

For data requests, please complete a data request form.

Classification

The OTR uses the ICD-10-CA/CCI classification system.

As of 2004–2005, all records have been reported in ICD-10-CA and CCI; prior to that, ICD-9, CCP and ICD‑9‑CM were used.

ICD-10-CA and CCI Documents

Historical Documents

Documents from 2001 to 2009 are available on request.

Data Elements

• Minimum Data Set (PDF)
• Comprehensive Data Set (PDF)

For more information on OTR data elements, please contact us at ntr@cihi.ca.

Data Quality

ºìÁì½í¹Ï±¨ensures that the quality of the information in our data holdings is suited to its intended uses and that data users are provided with accurate information about data quality. Read more about our Data and Information Quality Program.

OTR data quality documentation is currently unavailable.

Privacy impact assessment

Privacy impact assessments (PIAs) evaluate and address the privacy impacts of programs and systems. 

Go to the Privacy and security page to view the PIA, which contains further information about the purposes, data elements and data sources for this data holding.

Contact us 

For further information, please email

   help@cihi.ca