Table 2.
Univariate and multivariate proportional hazards (Cox) regression analyses according to PFS.
| Univariate Cox analysis | Multivariate Cox analysis | |||
| Variables in the equation | P | Hazard ratio (95%CI) | P | Hazard ratio (95.0% CI) |
| Age | ||||
| <57 | – | – | – | – |
| >57 | .006 | 0.550 (0.358–0.843) | .007 | 0.555 (0.361–0.853) |
| Gender | ||||
| Male | – | – | ||
| Female | .410 | 0.837 (0.549–1.277) | ||
| Smoke status | ||||
| Never | – | – | ||
| Smoker | .313 | 1.273 (0.796–2.034) | ||
| Histology | ||||
| ADC | – | – | ||
| Others | .391 | 0.766 (0.416–1.409) | ||
| TNM stage | ||||
| III | – | – | ||
| IV | .500 | 1.191 (0.717–1.978) | ||
| PLR | ||||
| <172.88 | – | – | ||
| >172.88 | .137 | 1.385 (0.902–2.127) | ||
| MLR | ||||
| <0.23 | – | – | ||
| >0.23 | .055 | 1.557 (0.990–2.450) | ||
| NLR | ||||
| <2.72 | – | – | ||
| >2.72 | .092 | 1.453 (0.940–2.246) | ||
| SII | ||||
| <841.03 | – | – | – | – |
| >841.03 | .036 | 1.577 (1.030–2.415) | 0.043 | 1.555 (1.014–2.385) |
| Drug | ||||
| Icotinib | .792 | – | ||
| Erlotinib | .736 | 0.884 (0.431–1.812) | ||
| Gefitinib | .464 | 0.832 (0.490–1.413) | ||