Table 1.
Clinicopathological Characteristics of 245 Patients
| Characteristics | Number (%) |
|---|---|
| Age | |
| Median | 60 |
| Range | 28–88 |
| Gender | |
| Male | 107(43.7) |
| Female | 138(56.3) |
| Smoking status | |
| Non-smoker | 176(71.8) |
| Current or ex-smoker | 69(28.2) |
| ECOG PS | |
| 0 | 38(15.5) |
| 1 | 166(67.8) |
| 2 | 41(16.7) |
| Brain metastasis | |
| Yes | 26(10.6) |
| No | 219(89.4) |
| EGFR mutation | |
| L858R | 101(41.2) |
| 19-DEL | 134(54.7) |
| Other | 10(4.1) |
| NLR | |
| High | 82(33.5) |
| Low | 163(66.5) |
| PLR | |
| High | 52(21.2) |
| Low | 193(78.8) |
| SIRI | |
| High | 90(36.7) |
| Low | 155(63.3) |
Abbreviations: ECOG PS, Eastern Cooperative Oncology Group performance status; SIRI, systemic immune response index; NLR, neutrophil to lymphocyte ratio; PLR, platelet to lymphocyte ratio.