Table 1.
Diagnostic value of RDW alone, CEA alone and Cyfra21-1 alone and combined detecting for NSCLC diagnosis.
| Variables | AUC | Cut off | Sensitivity (%) | Specificity (%) | 95% confidence interval | |
|---|---|---|---|---|---|---|
| Upper limit | Lower limit | |||||
| RDW | 0.753 | 12.95 | 76.33 | 76.16 | 0.721 | 0.797 |
| CEA | 0.665 | 5.00 | 34.32 | 94.04 | 0.620 | 0.705 |
| Cyfra21-1 | 0.657 | 3.30 | 50.31 | 86.42 | 0.614 | 0.700 |
| RDW + CEA | 0.816 | 82.10 | 66.20 | 0.783 | 0.850 | |
| RDW + Cyfra21-1 | 0.808 | 71.60 | 75.20 | 0.775 | 0.842 | |
| CEA + Cyfra21-1 | 0.705 | 60.80 | 78.50 | 0.663 | 0.746 | |
| RDW + CEA + Cyfra21-1 | 0.834 | 62.70 | 89.40 | 0.803 | 0.865 | |