Table 4.
Multivariate analysis of factors affecting prognosis.
| Variable | Hazard Ratio (HR) | 95% Confidence Interval (CI) |
|---|---|---|
| Smoking History | 1.5 | 1.1-2.0 |
| Performance Status (PS) | 2.0 | 1.5-2.5 |
| Stage at Diagnosis | 1.8 | 1.3-2.3 |
| Comorbidities | 1.4 | 1.0-1.8 |
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