Microdata linkage is a process of pairing records from two files and trying to select the pairs that belong to the same entity.
Microdata linkage is an important technique in the development, production, analysis and evaluation of statistical data. Statistics Canada has a Directive on Microdata Linkage that intends to achieve a balance between the need to protect the privacy of individuals while permitting microdata linkages for research and statistical purposes and the public good that the linkage achieves.
Statistics Canada has unique expertise in undertaking long-term epidemiological studies of mortality and cancer outcomes for populations that have been exposed to hazards such as industrial processes, radiation and chemicals. This work was initiated in the late 1970s, and more than 100 such studies have been completed. Projects undertaken serve a wide array of clients on a cost-recovery basis, and have been used to review and refine exposure guidelines, determine long-term benefits of treatments, develop health indicators, and target health programs and interventions.
Researchers may wish to have a specific cohort linked to one or more of the following health-related databases maintained at Statistics Canada:
- Canadian Mortality Database
- Canadian Cancer Database
- Canadian Birth Database
- Canadian Stillbirth Database
For more information:
Contact Client Services (613-951-1746; fax: 613-951-4198; firstname.lastname@example.org).
Canadian Mortality Database (CMDB)
The CMDB contains death events for the years 1950 up to the most recent year available. The database has an annual increase of 216,000 death records.
Death events are reported by the provincial and territorial Vital Statistics Registries in Canada. Cause of death information in the CMDB is coded using the version of the International Classification of Diseases (ICD) in effect at the time of death.
Canadian Cancer Database (CCDB)
The CCDB contains cancer incidence events from 1969 up to the most recent year available. Each year of cancer incidence data adds about 125,000 records to the database.
These cancer incidences are reported to Statistics Canada by all the provincial and territorial Cancer Registries in Canada.
Canadian Birth Database (CBDB)
The CBDB contains live birth events for the years 1985 up to the most recent year available. The database increases by approximately 346,000 birth records each year.
Live birth events are reported to Statistics Canada by the provincial and territorial Vital Statistics Registries in Canada.
Canadian Stillbirth Database (CSBD)
The CSBD contains stillbirth events for the years 1985 up to the most recent year available. The database increases by approximately 2,000 stillbirth records each year.
Stillbirth events are reported to Statistics Canada by the provincial and territorial Vital Statistics Registries in Canada.