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Table 6 PPV and sensitivity, by RAC event type and E linkage strategy. N linkage used as the reference standard.

From: Linkage of health and aged care service events: comparing linkage and event selection methods

Match strategy Permanent admission Respite admission Hospital leave Social leave Total
PPV      
Basic 95.5 97.8 98.5 89.2 97.7
Constrained-SLG v1 95.1 98.2 98.7 95.5 97.9
Constrained-SLG v2 94.8 97.4 98.7 95.5 97.7
Constrained-SLG v3 95.1 98.1 98.6 95.5 97.8
Constrained-PC v1 95.0 98.0 98.7 99.3 98.0
Constrained-PC v2 95.0 97.2 98.7 99.3 97.8
Constrained-PC v3 95.3 97.9 98.7 99.3 97.9
Sensitivity      
Basic 65.2 73.8 86.4 91.9 80.7
Constrained-SLG v1 75.0 81.1 92.5 91.3 87.6
Constrained-SLG v2 88.5 86.4 93.3 91.3 91.5
Constrained-SLG v3 89.6 89.2 92.5 91.3 91.5
Constrained-PC v1 69.5 78.5 91.7 90.7 85.6
Constrained-PC v2 88.9 87.0 93.1 90.7 91.5
Constrained-PC v3 88.0 88.0 91.7 90.7 90.5
N links 1723 852 5370 161 8106
RAC records 4752 3297 6878 4709 19636
  1. Note: Analysis indicated that for a small number of links the event match chosen by the N linkage strategy was not the preferred link. In particular, for 18 matches (0.2% of N links) the preferred link was to a RAC hospital leave event rather than the chosen (earlier) admission event for the same person.