ROC curve analysis showed that plasma CXCL14 achieved an AUC of 0.9464 (95% confidence interval [CI], 0.9209–0.9719) at a cutoff point of 746.0 pg/ml for diagnosis of lung cancer, with 87.4% sensitivity and 85.0% specificity (Figure 2B). This evidence concerns the gene CXCL14 and lung carcinoma.