Table 5A.
Univariate Analysis of Prognostic Factors for Death for the Propensity Score Matched Patients (n=516; 172 in each group)
| Variable | Univariate Analysis
|
|
|---|---|---|
| 5-year OS, % | Pa | |
| Age (continuous) | — | <0.001 |
| Sex | ||
| Female | 79.3 | — |
| Male | 71.5 | 0.33 |
| Smoking | ||
| Never | 86.9 | — |
| Former | 74.7 | 0.057 |
| Current | 72.5 | <0.001 |
| Clinical stage | ||
| IA | 79.0 | — |
| IB | 62.9 | 0.011 |
| Pathologic type | ||
| Adenocarcinoma | 78.3 | — |
| Squamous cell carcinoma | 63.4 | <0.001 |
| Other | 75.2 | 0.46 |
| Cell differentiation | ||
| Well | 95.0 | — |
| Moderately | 75.8 | 0.011 |
| Poorly/undifferentiated | 61.5 | <0.001 |
| Unknown | 81.3 | 0.20 |
| FEV1 (continuous) | — | <0.001 |
| DLCO (continuous) | — | <0.001 |
| Approach | ||
| Robotic | 77.6 | — |
| Open | 77.9 | 0.53 |
| VATS | 73.5 | 0.10 |
DLCO, diffusing capacity of carbon monoxide; FEV1, forced expiratory volume in 1 second; VATS, video-assisted thoracic surgery.
a
From univariate Cox regression models.