Table 2.

Comparison of diagnostic efficacy of three diagnostic methods.

Methods	AUC	Sensitivity (%)	Specificity (%)	Accuracy(%)	PPV (%)	NPV(%)
C-TIRADS	0.785*	68.5	88.5	78.3	86.0	73.0
SWE	0.775**	68.5	86.5	77.4	84.1	72.6
C-TIRADS+SWE	0.870	83.3#	84.6##	84.0	84.9	83.0

* indicates the AUC of C-TIRADS compared with that of SWE, z = 0.18, P > 0.05, the AUC of C-TIRADS compared with that of C-TIRADS + SWE, z = 2.76, P < 0.05; ** indicates the AUC of SWE compared with that of C-TIRADS + SWE, z = 2.25, P < 0.05; ^# indicates that the comparison of sensitivity values among the three diagnostic methods had statistical significance (P < 0.05); ^## indicates that the comparison of specificity values among the three diagnostic methods had no statistical significance (P > 0.05).