Table 4.

The area under the curve (AUC) of ACR-TIRADS, K-TIRADS, C-TIRADS.

	AUC	Standard Errora	Asymptotic P-value	Asymptotic 95% Confidence Interval
				Lower Limit of 95% CI	Upper Limit of 95% CI
All Nodules
ACR TI-RADS	0.782	0.053	0.000	0.678	0.885
K-TIRADS	0.767	0.053	0.000	0.663	0.872
C-TIRADS	0.842	0.045	0.000	0.754	0.930
Nodules ≤1 cm
ACR TI-RADS	0.702	0.084	0.000	0.537	0.866
K-TIRADS	0.696	0.083	0.016	0.533	0.859
C-TIRADS	0.773	0.074	0.018	0.628	0.919
Nodules >1 cm
ACR TI-RADS	0.857	0.065	0.000	0.731	0.984
K-TIRADS	0.828	0.071	0.000	0.689	0.966
C-TIRADS	0.916	0.047	0.000	0.823	1.008