MCHP repository databases used in this study
| Database | Data fields of interest |
| Manitoba Health Insurance Registry | Date of birth, sex |
| Diagnostic Services Manitoba (Laboratory Tests) | COVID-19 diagnostic test results and indication for test |
| Public Health Information Management System (Vaccination) | COVID-19 vaccination records (vaccine type, number of doses) |
| Medical claims | Reason for physician visit (ICD codes) |
| Hospital Discharge Abstract Database | Reason for hospitalisation (ICD codes) |
| ICU admissions | Reason for admission to ICU (ICD codes) |
| Vital statistics | Date of death and reason for death |
| Drug Programme Information Network | Prescription drugs |
| Manitoba First Nations Research File | First Nations identity |
| Metis Population Database | Metis identity |
| Manitoba Inuit Registry | Inuit identity |
| Universal Newborn Screen Data | First Nations identity |
| Healthy Baby Programme Data | First Nations identity |
| Employment and Income Assistance Data | First Nations identity |
| Early Development Instrument Data | First Nations identity |
| Canada Census | Postal codes (urban/rural geography) |
ICD, International Classification of Diseases; ICU, intensive care unit; MCHP, Manitoba Centre for Health Policy.