Assessing record linkage between health care and Vital Statistics databases using deterministic methods

Table 2 Correct Linkage Rates (%) among Records Matched between Vital Statistics registry and Population registry

A combination of common identifiers		1998/99	1999/00	2000/01	2001/02
Surname, Sex and Date of Birth		(N = 2620)	(N = 3014)	(N = 3445)	(N = 3530)
Total		96.1	96.3	96.9	96.9
Sex:	Female	96.4	96.2	97.2	97.3
Age:	Male	95.8	96.4	96.5	96.6
	1 to 9 years	100.0	92.3	100.0	93.3
	10 to 19 years	86.7	94.7	100.0	96.0
	20 to 29 years	96.2	87.9	87.5	90.5
	30 to 39 years	90.9	92.4	90.8	94.8
	40 to 49 years	93.9	93.5	96.0	94.5
	50 to 64 years	93.8	95.9	94.5	96.0
	Over 65 years	96.8	96.8	97.5	97.4
First Name, Sex and Date of Birth		(N = 2405)	(N = 2777)	(N = 3202)	(N = 3298)
Total		89.3	89.1	89.3	89.6
Sex:	Female	89.5	90.0	89.3	90.5
	Male	89.1	88.1	89.3	88.7
Age:	1 to 9 years	100.0	91.7	70.0	85.7
	10 to 19 years	76.9	87.5	73.7	84.2
	20 to 29 years	91.7	80.0	86.4	76.0
	30 to 39 years	74.2	74.6	67.7	73.7
	40 to 49 years	71.7	66.4	68.2	71.6
	50 to 64 years	82.9	88.5	82.0	85.2
	Over 65 years	91.9	91.9	92.8	92.2
Surname, First Name, Sex and Date of Birth		(N = 2311)	(N = 2672)	(N = 3120)	(N = 3188)
Total		97.3	97.6	98.2	98.5
Sex:	Female	97.6	97.8	98.1	98.3
	Male	97.1	97.4	98.2	98.7
Age:	1 to 9 years	100.0	100.0	100.0	100.0
	10 to 19 years	91.7	100.0	100.0	94.1
	20 to 29 years	100.0	96.2	100.0	100.0
	30 to 39 years	96.6	98.3	96.7	98.2
	40 to 49 years	95.8	96.3	99.3	98.2
	50 to 64 years	95.3	97.7	98.0	98.5
	Over 65 years	97.8	97.6	98.1	98.5

ISSN: 1472-6963