Table 1 Scenarios that resulted in unlinked records using deterministic linkage were subsequently linked following probabilistic linkage, ranked from most likely to be correct to least likely
NHS numberSexDate of birthLocal ID within hospitalPostcodeMatch weightn
ADAAA62.025
A.AAA62.0255
ADAA.45.9610
A.AA.45.965
AAADA44.499
ADAAD44.325
A.A.A42.7522
..AAA42.2425
.DAAA42.2414
A.ADA41.3241
ADADA41.329
.AAA.29.351809
AAAD.28.437
.AAAD27.71722
AAADD26.7976
..AA.26.182
.DAA.26.183
.AA.A26.145
DAAA.26.038
A.AD.25.262
ADAD.25.269
.AADA24.713642
..AAD24.542
.DAAD24.5410
DAAAD24.395
A.ADD23.625
ADADD23.6211
..A.A22.971

Note. A = identifier agreed; D = identifier disagreed; . = identifier missing.