Record linkages results per province

 
Linkage December 2018 Release
Linkage Rate1 False Positive error Rate2 False Negative error Rate3
Ontario Census (individuals) 93.3% < 1.0% < 0.5%
Tax & Social Insurance Registry (individuals) 98.0% < 0.5% < 0.5%
Business Register (non-individuals) 97.8% < 2.0% n.a.
British Columbia Census (individuals) 89.3% < 1.0% < 1.5%
Tax & Social Insurance Registry (individuals) 96.6% < 1.0% < 1.0%
Business Register (non-individuals) 97.5% < 6.5% n.a.
Nova Scotia Census (individuals) 86.6% < 1.5% < 1.0%
Tax & Social Insurance Registry (individuals) 93.3% < 1.5% < 1.0%
Business Register (non-individuals) 96.0% < 8.0% < 2.0%
n.a.: not available at this time.

Note:

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 FPR. While it is not a data quality indicator alone, in addition to the FPR and FNR it provides a complete picture of the overall linkage quality.

FPR: The False Positive error Rate 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).

FNR: The False Negative error Rate 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).