Skip to main content

Table 3 Accuracy of the algorithms variants vs. the Emilia-Romagna Dialysis (ERDR) registry

From: Developing and validating an algorithm to identify incident chronic dialysis patients using administrative data

  Algorithm using only ASV data Algorithm 1 with 60 days’ threshold Algorithm 1 with 90 days’ threshold Algorithm 2 with 60 days’ threshold Algorithm 2 with 90 days’ threshold
Incident cases identified by the algorithm 637 697 683 711 690
 Found in ERDR, incident in 2014 534 550 542 538 531
 Found in ERDR, incident in a different year 55 67 67 51 49
 Not found in ERDR 48 80 74 122 110
Incident ERDR cases in 2014 missed by the algorithm 88 75 82 84 90
Percentage agreement 73.7% 71.2% 70.8% 67.7% 68.1%
Sensitivity 85.9% 88.0% 86.9% 86.5% 85.5%
Positive predictive value (PPV) 83.8% 78.9% 79.4% 75.7% 77.0%