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Table 5 Ability of TSB measurements over the 40th and 75th percentile of Buthani nomogram to predict significant hyperbilirubinaemia, for designated time periods.

From: Development and validation of serum bilirubin nomogram to predict the absence of risk for severe hyperbilirubinaemia before discharge: a prospective, multicenter study

Hours of age TP
(n)
FN
(n)
TN
(n)
FP
(n)
Sensitivity
(%)
Specificity
(%)
PPV
(%)
NPV
(%)
24 to 48 hours         
< 40 th percentile 25 0 238 382 100.0 38.4 6.1 100.0
< 75 th percentile 21 4 447 173 84.0 72.1 10.8 99.1
49 to 72 hours         
< 40 th percentile 22 1 732 293 95.7 71.4 7.0 99.9
< 75 th percentile 17 6 963 62 73.9 94.0 21.5 99.4
73 to 96 hours         
< 40 th percentile 7 0 374 93 100 80.1 7.0 100
< 75 th percentile 6 1 451 16 85.7 96.6 27.3 99.8