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Cox Regression of PFS
| Factor | P | HR | 95% CI | |
|---|---|---|---|---|
| EGFR status | Wild type | 1 | ||
| Mutant | 0.010 | 2.026 | 1.182–3.472 | |
| Unknown | 0.287 | 1.220 | 0.846–1.759 | |
| ECOG PS | ≤1 | 1 | ||
| >1 | 0.023 | 1.394 | 1.048–1.855 | |
| Brain metastases | No | 1 | ||
| Yes | 0.070 | 1.434 | 0.971–2.117 | |
| Liver metastases | No | 1 | ||
| Yes | 0.222 | 1.264 | 0.868–1.840 | |
| Adrenal metastases | No | 1 | ||
| Yes | 0.235 | 1.413 | 0.799–2.498 | |
| Number of distant metastases | ≤2 | 1 | ||
| >2 | 0.261 | 1.354 | 0.799–2.295 | |
