Table 4.

Fitting parameters of optimal cutoff points

Cutoff point (mm)	Youden	Accuracy	Sensitivity	Specificity
0.5	0.1	0.14	1	0.1
0.9	0.21	0.36	0.87	0.34
1.3	0.33	0.53	0.81	0.51
1.5	0.34	0.6	0.75	0.59
1.9	0.39	0.65	0.75	0.64
2.1	0.43	0.68	0.75	0.68
2.31	0.5	0.75	0.75	0.75
2.4	0.44	0.75	0.69	0.75
2.5	0.40	0.76	0.63	0.77