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Table 7 Linkage error measures (1995)

From: Investigating increased admissions to neonatal intensive care in England between 1995 and 2006: data linkage study using Hospital Episode Statistics

Linkage algorithm

Cutoff

True matches

PPV

Sensitivity

EM

10

1408

0.025

0.512

EpiLink (Contiero)

0.35

1501

0.237

0.546

Fellegi-Sunter (baseline model)

10

1740

0.039

0.633

Fellegi-Sunter (Dattani estimates)

15

1665

0.031

0.606

  1. Positive predictive value (PPV) and sensitivity of results obtained using different methods for linkage between the HES and EPICure data sets in 2006. EM: estimation-maximisation, FS: Fellegi-Sunter
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BMC Medical Research Methodology

ISSN: 1471-2288

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