ROC curves in evaluation of serum fibrosis indices for hepatic fibrosis

Table 1 ROC curves of five serum fibrosis indexes

Indices	AUC	P Vaule	cut-off point	Sensitivity	Specificity	r Vaule
PIIINP	0.800	0.000	≥ 5.61 μg/L	82.7%	62.5%	0.452
HA	0.728	0.003	≥ 145.2 ng/mL	62.2%	87.5%	0.497
PCIII	0.727	0.004	≥ 137.4 μg/L	59.2%	81.2%	0.404
C- IV	0.583	0.287	≥ 74.2 μg/L	55.1%	68.7%	0.238
LN	0.463	0.636	≥ 156.65 ng/mL	37.8%	75.0%	0.128

Right diagnosis index (r) = sensitivity + specificity -1