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Table 4 Diagnostic accuracy of the pediatric non-alcoholic fatty liver disease fibrosis index.

From: The pediatric NAFLD fibrosis index: a predictor of liver fibrosis in children with non-alcoholic fatty liver disease

Cut-point n % TPR TNR PLR NLR PPV NPV
≥ 1 198 97.5 99.3
(96.1 to 100.0)
6.4
(1.8 to 15.7)
1.1
(1.0 to 1.1)
0.1
(0.01 to 1.0)
70.7
(63.8 to 76.9)
80.0
(28.4 to 99.5)
≥ 2 190 93.6 97.2
(92.9 to 99.2)
14.5
(6.9 to 25.8)
1.1
(1.0 to 1.3)
0.2
(0.1 to 0.6)
72.1
(65.2 to 78.4)
69.2
(38.6 to 90.9)
≥ 3 179 88.2 95.7
(91.0 to 98.4)
29.0
(18.2 to 41.9)
1.3
(1.1 to 1.6)
0.2
(0.1 to 0.3)
75.4
(68.4 to 81.5)
75.0
(53.3 to 90.2)
≥ 4 167 82.3 93.6
(88.2 to 97.0)
43.5
(31.0 to 56.7)
1.7
(1.3 to 2.1)
0.2
(0.1 to 0.3)
79.0
(72.1 to 84.9)
75.0
(57.8 to 87.9)
≥ 5 154 75.9 88.7
(82.2 to 93.4)
53.2
(40.1 to 66.0)
1.9
(1.4 to 2.5)
0.2
(0.1 to 0.4)
81.2
(74.1 to 87.0)
67.3
(52.5 to 80.1)
≥ 6 138 68.0 81.6
(74.2 to 87.6)
62.9
(49.7 to 74.8)
2.2
(1.6 to 3.1)
0.3
(0.2 to 0.4)
83.3
(76.0 to 89.1)
60.0
(47.1 to 72.0)
≥ 7 118 58.1 76.6
(68.7 to 83.3)
83.9
(72.3 to 92.0)
4.7
(2.7 to 8.4)
0.3
(0.2 to 0.4)
91.5
(85.0 to 95.9)
61.2
(50.0 to 71.6)
≥ 8 94 46.3 62.4
(53.9 to 70.4)
90.3
(80.1 to 96.4)
6.4
(3.0 to 13.9)
0.4
(0.3 to 0.5)
93.6
(86.6 to 97.6)
51.4
(41.6 to 61.1)
≥ 9 66 32.5 46.1
(37.7 to 54.7)
98.4
(91.3 to 100.0)
28.6
(4.0 to 201.0)
0.6
(0.5 to 0.6)
98.5
(91.8 to 100.0)
44.5
(36.0 to 53.3)
  1. 95% confidence intervals are given in parentheses. Abbreviations: TPR = true positive rate; TNR = true negative rate; PLR = positive likelihood ratio; NLR = negative likelihood ratio; PPV = positive predictive value; NPV = negative predictive value.