Fig. 1From: Elevated serum CEA levels are associated with the explosive progression of lung adenocarcinoma harboring EGFR mutationsA ROC curve was drawn, and the area under the curve was calculated. The area under the curve for CEA was 0.567 (95% CI: 0.476 ~ 0.657, p < 0.001). When the CEA cut-off was 3.4 ng/ml, the sensitivity was 69.6% and the specificity was 48.8%Back to article page