Comparison of Serum MicroRNA21 and Tumor Markers in Diagnosis of Early Non-Small Cell Lung Cancer

Figure 1

Receiver operating characteristic (ROC) curve of using serum miR21, CEA, NSE, and CYFRA21-1 levels. (a) ROC curve of using serum miR21, CEA, NSE, and CYFRA21-1 levels to diagnose NSCLC; (b) ROC curve of using serum miR21, CEA, NSE, and CYFRA21-1 levels to diagnose early NSCLC; (c) ROC curve for single detection of serum miR21 or CYFRA21-1 level and joint detection of both markers to diagnose early NSCLC.

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