Table 6. Comparison of AUC between Quantitative CT Parameters and Semiquantitative Visual Score.

Compared Parameter	Difference between AUCs	Standard Error	z	P
Volume of lesions vs. semiquantitative score	0.087	0.0295	2.955	0.0031
Percentage of lesions vs. semiquantitative score	0.091	0.0285	3.198	0.0014
Volume of ground-glass opacities vs. semiquantitative score	0.072	0.0318	2.251	0.0244
Percentage of ground-glass opacities vs. semiquantitative score	0.079	0.0301	2.617	0.0089