Table 2.

Efficacy of CT lymph node MAD and/or serum SCC-Ag in judging retroperitoneal lymph node metastasis in patients with locally advanced cervical squamous cell carcinom

Group	Case	Pathological results		Accuracy (%)	Sensitivity(%)	Specificity (%)	Youden index
		Positive	Negative
CT lymph node MAD ≥1.0 cm + SCC-Ag ≥ 5.2 ng/mL	24	24	0	75.71*	58.54	100.0*	0.59*
CT lymph node MAD ≥1.0 cm	40	33	7	72.09	66.0	80.56	0.47
SCC-Ag ≥ 5.2 ng/mL	39	30	9	71.43	73.17	68.97	0.42

CT computed tomography, MAD minimum axial diameter, SCC-Ag Squamous cell carcinoma antigen. *P  < 0.05 vs. the CT lymph node MAD ≥1.0 cm group and SCC-Ag ≥ 5.2 ng/mL group