Table 4.

Different thresholds in diagnosis for 206 patients

cut-off value(U/L)	SE(%)	SP(%)	+LR	-LR	PPV(%)	NPV(%)	YI(%)
> 105	90.48	45.41	1.66	0.21	62.37	82.67	35.98
> 167	76.19	66.49	2.27	0.36	69.45	73.63	42.68
> 229	76.19	71.89	2.71	0.33	73.05	75.12	48.08
> 326	76.19	81.08	4.03	0.29	80.11	77.30	57.27
> 447	57.14	86.49	4.23	0.50	80.88	66.87	43.63
Optimal cut-off(351 U/L)	76.19	83.24	4.55	0.29	81.90	77.76	59.43