Table 2.

Putative sensitivity and specificity of cut-off points by finite mixture model.

Cut-off	Sensitivity (%)	Specificity (%)	Youden’s index
2.4	97.99	94.04	0.9203
2.5	97.89	95.11	0.9300
2.6	97.79	96.19	0.9398
2.7	97.68	97.30	0.9498
2.8	97.57	98.33	0.9590
2.9	97.45	99.10	0.9655
3.0	97.33	99.56	0.9689
3.1	97.20	99.78	0.9698
3.2	97.06	99.87	0.9693
3.3	96.91	99.92	0.9683
3.4	96.75	99.95	0.9670
3.5	96.58	99.96	0.9654
3.6	96.38	99.97	0.9635
3.7	96.16	99.98	0.9614
3.8	95.92	99.99	0.9591
3.9	95.65	99.99	0.9564
4.0	95.35	99.99	0.9534
4.1	95.03	99.99	0.9502
4.2	94.67	99.99	0.9466