Table 4.
Multivariate analysis for prediction of non-invasive NSCLC among clinical stage IA patients
| Variables | Risk factors | Risk ratio for invasive tumor | 95% CI | p-value* |
|---|---|---|---|---|
| Tumor size (cm) | >2.0 | 2.871 | 1.347-6.119 | 0.006 |
| Urine DiAcSpm level (nmol/g creatinine) | high | 3.374 | 2.736-7.361 | 0.002 |
| Serum CEA (mg/dL) | ≥5.0 | 2.316 | 0.841-6.377 | 0.104 |
| TDR | < 0.75 | 6.103 | 1.962-18.98 | <0.001 |
*Logistic regression analysis, CI = confidence interval, DiAcSpm = diacetylspermine, CEA = serum carcinoembryonic antigen level, TDR = tumor disappearance rate.