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

Table 3 Linkage Rates (%) between Vital Statistics registry and In-hospital death data

A combination of common identifiers		1998/99 (N = 1639)	1999/00 (N = 1637)	2000/01 (N = 1707)	2001/02 (N = 1779)
Surname, Sex and Date of Birth
Total		89.6	89.3	91.5	93.1
Sex:	Female	88.0	88.3	90.8	93.8
	Male	90.9	90.1	92.0	92.4
Age:	1 to 9 years	100.0	100.0	88.9	77.8
	10 to 19 years	100.0	85.7	88.9	92.3
	20 to 29 years	88.2	80.0	78.6	70.0
	30 to 39 years	92.1	80.6	83.9	85.2
	40 to 49 years	87.7	90.1	90.7	88.2
	50 to 64 years	85.5	87.1	91.1	94.7
	Over 65 years	90.2	90.0	91.9	93.5
First Name, Sex and Date of Birth
Total		80.1	82.3	82.8	85.0
Sex:	Female	76.6	80.8	82.7	83.3
	Male	83.2	83.6	82.9	86.6
Age:	1 to 9 years	77.8	83.3	100.0	88.9
	10 to 19 years	70.0	78.6	66.7	76.9
	20 to 29 years	94.1	70.0	78.6	80.0
	30 to 39 years	89.5	86.1	74.2	74.1
	40 to 49 years	80.3	79.0	84.0	83.9
	50 to 64 years	77.9	80.6	82.1	85.1
	Over 65 years	80.2	82.9	83.1	85.4
Surname, First Name, Sex and Date of Birth
Total		78.2	79.8	81.7	83.3
Sex:	Female	74.2	78.1	81.2	81.9
	Male	81.6	81.4	82.2	84.5
Age:	1 to 9 years	77.8	83.3	88.9	77.8
	10 to 19 years	70.0	71.4	55.6	76.9
	20 to 29 years	88.2	60.0	78.6	60.0
	30 to 39 years	86.8	77.8	71.0	74.1
	40 to 49 years	76.5	77.8	80.0	81.7
	50 to 64 years	73.6	77.6	81.3	83.7
	Over 65 years	78.8	80.8	82.3	83.7

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