Table 2 Multivariable analysis for independent factors on overall survival
Variable | HR (95% CI) | P value |
|---|---|---|
ECOG PS (≥2 vs. <2) | 2.75 (1.71–4.38) | P < 0.001 |
EGFR (mutation vs. wild type) | 0.58 (0.40–0.84) | P = 0.004 |
Systemic treatment (yes vs. no) | 0.36 (0.25–0.53) | P = 0.001 |