Table 4.

Identification of the characteristics of growing and stable pulmonary nodules based on the ROC index

	AUC	Sensitivity	Specificity	p values	95% CI	Cut-off value	Yd
Age	0.75	0.889	0.548	< 0.0001	0.661–0.826	54	0.437
Vd	0.785	0.667	0.823	< 0.0001	0.699–0.856	0.9	0.489

AUC area under curve; CI confidence interval; Vd vessel diameter; Vs vacuole sign. Yd Youden index