Table 4. Influence of variables on TTP.
| Covariate | HR | CI | p |
|---|---|---|---|
| Pack-Year | 0.99 | 0.96–1.02 | 0.64 |
| Age | 1.00 | 0.94–1.06 | 0.88 |
| ECOG PS | 0.82 | 0.42–1.60 | 0.57 |
| COPD | 2.58 | 0.81–8.25 | 0.11 |
| Histo-type | 1.80 | 0.97–3.32 | 0.04 |
Cox proportional-hazard regression analysis.
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