Table 3.

Diagnostic efficacy of percentage of lung involvement in the lung segments in different stages.

	Name of lung segment	AUC	Sensitivity	Specificity
Stage-1	Inferior lingular segment of L1	0.683	0.562	0.786
	Lateral segment of R2	0.721*	0.937	0.5
	Medial segment of R2	0.662	0.781	0.524
Stage-2	Apical segment of R1	0.662	0.778	0.625
	Posterior segment of R1	0.729	0.815	0.687
	Anterior segment of R1	0.755*	0.556	0.906
	Superior segment of R3	0.689	0.556	0.781
	Anterior basal segment of R3	0.72	0.704	0.719
	Medial basal segment of R3	0.69	0.519	0.875
	Lateral basal segment of R3	0.699	0.741	0.594
	Posterior basal segment of R3	0.659	0.704	0.625
	Superior lingular segment of L1	0.634	0.407	0.875
Stage-4	Anterior segment of R1	0.705	0.769	0.639
	Apical segment of R1	0.669	0.462	0.861
	Posterior segment of R1	0.734*	0.577	0.889
	Superior segment of R3	0.674	0.538	0.833
	Medial Basal segment of R3	0.678	0.885	0.417
	Apicoposterior segment of L1	0.707	0.692	0.778
	Anterior segment of L1	0.657	0.5	0.833

^*Represents the lung segment that contributes the most to lung involvement at each stage. R1, right upper lobe; R2, right middle lobe; R3, right lower lobe; L1, left upper lobe; L2, left lower lobe.