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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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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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