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Table 3 Calculation of the sensitivity and specificity based on the 37 test subjects studied

From: New pediatric vision screener, part II: electronics, software, signal processing and validation

 

TN

FP

TP

FN

Sensitivity (%)

Specificity (%)

Normals (n = 19)

Patients (n = 18)

  

CF

19

0

18

0

100 

100.0 

FD

17

2

18

0

100 

89.5 

Both

36

2

36

0

100 

94.7 

  1. TN true negative, FP false positive, TP true positive, FN false negative