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Table 1 Schematic table of the calculation method of performance indexes by Phevaluator

From: Performance evaluation of case definitions of type 1 diabetes for health insurance claims data in Japan

Patient Positive by a case definition Negative by a case definition
Predictive value of being true patient (TP) Predictive value of being false patient (FP) Predictive value of being true patient (FN) Predictive value of being false patient (TN)
A 0.7 0.3   
B    0.4 0.6
C 0.9 0.1   
D    0.3 0.7
Cumulative probabilities TPs = 1.6 FPs = 0.4 FNs = 0.7 TNs = 1.3
  1. TP true positive, FP false positive, TN true negative, FN false negative
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