Table 5. Intraclass correlation coefficient (ICC) between two observers.

Variable	ICC	95% CI
Mean CT value of pure GGN	0.947	0.923–0.964
Mean CT value of GGC in PSN	0.897	0.843–0.932
Mean CT value of SC in PSN	0.931	0.894–0.955
Mean CT value of lung	0.825	0.773–0.866
Nodule size	0.886	0.857–0.909

CI, confidence interval; CT, computed tomography; GGC, ground-class component; GGN, ground-glass nodule; PSN, part-solid nodule; SC, solid component.