Fig 2. Area under the receiver operating characteristic curve of the investigated risk models (with 95% confidence interval) in the National Lung Screening Trial computed tomography arm by predicted outcome.

AUC, area under the receiver operating characteristic curve; CPS, Cancer Prevention Study; HPFS, Health Professionals Follow-up Study; LC, lung cancer; LLP, Liverpool Lung Project; NHS, Nurses’ Health Study; TSCE, Two-Stage Clonal Expansion.