Serum autotaxin levels are correlated with hepatic fibrosis and ballooning in patients with non-alcoholic fatty liver disease

Table 3 Diagnostic performance of autotaxin for predicting liver fibrosis stage in patients with non-alcoholic fatty liver disease

	Cut off	AUC	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Accuracy (%)
All patients
≥ F1	0.73	0.71	77	57	89	36	73
≥ F2	1.19	0.75	45	94	80	77	78
≥ F3	1.19	0.75	51	91	63	86	82
F4	1.20	0.87	78	85	21	99	84
Male
≥ F1	0.70	0.73	58	94	97	36	65
≥ F2	0.71	0.75	81	68	47	91	71
F3	0.82	0.74	62	82	40	92	79
Female
≥ F1	1.03	0.76	53	95	98	31	60
≥ F2	1.19	0.80	66	91	82	81	81
≥ F3	1.19	0.78	73	86	67	89	82
F4	1.20	0.78	78	74	22	97	75

ATX: Autotaxin; AUC: Area under the receiver operating characteristic curve; PPV: Positive predictive value; NPV: Negative predictive value.