Table 3. Multivariate Cox Model (hazard ratios represent the risk of death).
| Overall Survival HR (95% CI) | P-Value | ||
|---|---|---|---|
| Age | Continuous variable | 1.024 (1.015-1.032) | <0.01 |
|
| |||
| Sex | Female (Reference) | 1.000 | |
| Male | 1.236 (1.061-1.441) | <0.01 | |
|
| |||
| Stage | I (Reference) | 1.000 | |
| II | 1.888 (1.571-2.269) | ||
| III | 2.743 (1.942-3.875) | ||
| IV | 2.662 (1.855-3.821) | ||
|
| |||
| Surgery type | Lobectomy (Reference) | 1.000 | <0.01 |
| Segmentectomy | 1.474 (1.061-2.047) | <0.02 | |
| Wedge resection | 1.848 (1.376-2.481) | <0.01 | |
| Pneumonectomy | 1.478 (1.033-2.115) | 0.03 | |
|
| |||
| Pre-op therapy | No (Reference) | 1.000 | <0.01 |
| Yes | 1.403 (1.164-1.692) | ||
|
| |||
| Histology | Adenocarcinoma (Reference) | 1.000 | |
| Squamous Cell Carcinoma | 1.225 (1.035-1.451) | 0.02 | |
| Other | 0.959 (0.747-1.231) | 0.74 | |
|
| |||
| BMI | Continuous (per 1 unit) | 0.977 (0.962-0.992) | 0.03 |
| BMI | <25 Reference | 1.00 | |
| >=25 | 0.841 (0.719-0.984) | 0.03 | |
| Smoking | No (Reference) | 1.00 | |
| Yes | 1.358 (1.095-1.684) | <0.01 | |