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. 2021 Oct 28;1:43. doi: 10.1038/s43856-021-00043-x

Fig. 3. Receiver operating characteristic (ROC) curves of 25 abnormal signs on CXR in the three external test cohorts.

Fig. 3

a In the cohort of symptomatic patients in the academic hospital, the mean AUC was 0.866 ± 0.110. The AUCs of major abnormal signs, i.e., consolidation, nodule, mass, pneumothorax, and pleural effusion, were 0.900 (95% CI: 0.849–0.943), 0.698 (0.581–0.806), 0.977 (0.965–0.988), 0.963 (0.925–0.991), and 0.988 (0.980–0.994), respectively. b In the cohort of asymptomatic screening examinees in the academic hospital, the mean AUC was 0.891 ± 0.147. The AUCs of common signs, i.e., consolidation and nodule, were 0.876 (0.817–0.920) and 0.796 (0.725–0.838), respectively. c In the cohort of symptomatic patients in eight community clinics, the mean AUC was 0.796 ± 0.157. The AUCs of major signs, i.e., consolidation, nodule, and mass, were 0.873 (95% CI: 0.815–0.926), 0.698 (0.619–0.771), and 1.000 (0.991–1.000), respectively.