Record linkage results per province – 2019

Record linkage results per province
Linkage March 2021 Release
Linkage RateTablenote 1 False Discovery RateTablenote 2 False Negative error RateTablenote 3
%
Nova Scotia Census (individuals) 87.8 < 0.5 < 1.0
Tax & Social Insurance Registry (individuals) 94.2 < 0.5 < 2.5
Business Register (non-individuals) 95.6 < 0.5 < 2.0
New Brunswick Census (individuals) 84.9 < 3.0 < 3.0
Tax & Social Insurance Registry (individuals) 92.3 < 2.5 < 6.0
Business Register (non-individuals) 95.3 < 2.0 < 2.0
Ontario Census (individuals) 93.2 < 1.0 < 0.5
Tax & Social Insurance Registry (individuals) 98.2 < 0.5 < 0.5
Business Register (non-individuals) 97.4 < 2.0 < 1.0
British Columbia Census (individuals) 90.5 < 1.0 < 2.0
Tax & Social Insurance Registry (individuals) 96.8 < 1.0 < 1.5
Business Register (non-individuals) 97.3 < 6.0 < 1.5
Tablenote 1

Linkage Rate: The linkage rate is calculated as the percentage of owner records with accepted links to the database shown. It is the denominator for the false discovery rate (FDR). While it is not a data quality indicator alone, in addition to the FDR and the false negative error rate (FNR) it provides a complete picture of the overall linkage quality.

Return to tablenote 1 referrer

Tablenote 2

False Discovery Rate (FDR): The FDR is calculated as the percentage of records with false links among records with accepted links (i.e., a record with a false link is a record that was linked incorrectly).

Return to tablenote 2 referrer

Tablenote 3

False Negative error Rate (FNR): The FNR is calculated as the percentage of records with true links which were not found in the linkage process (i.e., records that were not linked when they should have been).

Return to tablenote 3 referrer
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