Table 2. Multivariate analysis of overall survival and disease free survival.
| Predictor | DFS | OS | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P | HR | 95%CI | P | |
| Sex (male vs. female) | 1.61 | 1.18-2.19 | .003. | 2.59 | 1.62-4.14 | .000 |
| Age (>60 vs.≤60) | 1.32 | .97-1.80 | .078 | 1.31 | 0.80-2.13 | .268 |
| Visceral pleural invasion (Yes vs. No) | 2.37 | 1.70-3.31 | .000 | 1.67 | 1.03-2.71 | .039 |
| Lymphovascular invasion (Yes VS. No) | 2.33 | 1.53-3.56 | .000 | 1.40 | 0.70-2.80 | .338 |
| ACT (Yes vs. No) | 0.93 | 0.65-1.34 | .699 | 0.88 | 0.52-1.50 | .643 |
| Tumor size (2-3cm vs. ≤2cm) | 1.64 | 1.19-2.28 | .003 | 2.57 | 1.57-4.20 | .000 |
| Histology (SOL/MIP vs. LEP/ACN/PAP) | 2.19 | 1.32-3.62 | .002 | .046 | 2.09-4.31 | .052 |
Abbreviations: ACT= adjuvant chemotherapy