Table 3 Performance of linkage algorithms and thresholds
Bespoke algorithm | ReclinkIII algorithm | |||
|---|---|---|---|---|
Conservative threshold = 21 | Relaxed threshold = 20 | Conservative threshold = 12 | Relaxed threshold = 10 | |
N linked | 131 | 193 | 125 | 788 |
N true links | 123 | 132 | 102 | 114 |
N false-matches | 8 | 61 | 23 | 674 |
N missed-matches | 68 | 59 | 89 | 77 |
Sensitivity % (95% CI) | 64.4 (57.2–71.2) | 69.1 (62.0–75.6) | 53.4 (46.1–60.6) | 59.7 (52.4–66.7) |
Positive predictive value % (95% CI) | 93.9 (86.6–96.3) | 68.4 (61.3–74.8) | 81.6 (73.7–87.9) | 14.5 (12.1–17.1) |