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Performance comparison between the LN-RPV and the Brock and Herder Scores for baseline solid nodules in the test set (117 patients). Performance metrics are reported using training set cut-offs to maximise the Youden index. For accuracy, 95% CIs are given in parentheses. Abbreviations: AUC, Area under the curve; PPV, Positive predictive value; NPV, Negative predictive value; CI, Confidence interval.
