The data linkage process

Population Data BC (PopData) performs linkage on intake of a new data set from a Data Provider, where approved. New data sets are received from Data Providers throughout the year and incorporated into PopData’s holdings on an ongoing basis.

PopData uses personal identifiers and mathematical linkage techniques to link records belonging to the same individual across files and over time. 

Data linkage

What is data linkage?

Linkage allows information on an individual from one data source to be linked to information on the same individual from another data source. Using the linked data makes it possible to gain a more comprehensive understanding than could be obtained from either data source individually.

Linkage can also be used for conducting longitudinal analyses within the same data source, even when identifying information is recorded inconsistently, incompletely or has changed over time.

Spatial data sets

Spatial data can be used in conjunction with data sets managed by Population Data BC.

Spatial data is data with location information that can be linked to places in geographic space and visualized as a map or used in spatial analysis. Spatial characteristics apply to most population health related phenomena and these can be mapped and analyzed, using software such as Geographic Information Systems (GIS), to investigate questions of concern to population health researchers.

Central Demographics File (MSP Registration and Premium Billings, Client Roster and Census Geodata)/Consolidation file (MSP registration and premium billing) data set

Data sources: 

  • BC Ministry of Health Services
  • BC Ministry of Health Services Registration & Premium Billing (R&PB) files
  • BC's health services utilization files -- Medical Services Plan (MSP) Payment Information, Discharge Abstract Database (Hospital Separations)
  • BC Stats Translation Master File (TMF)
  • Statistics Canada Postal Code Conversion File (PCCF)

 

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