Table 3.
Univariate analysis of PFS in chemotherapy and TKI treatment groups
| Variable | Cytotoxic chemotherapy group | TKI treatment group | |||||||
|---|---|---|---|---|---|---|---|---|---|
| n | HR | 95% CI | P value | n | HR | 95% CI | P value | ||
| Age at diagnosis | ≤65 | 97 | 0.721 | 0.530–1.008 | 0.056 | 38 | 0.871 | 0.523–1.449 | 0.595 |
| ≥65 | 68 | 47 | |||||||
| Gender | M | 73 | 0.863 | 0.631–1.181 | 0.358 | 26 | 0.681 | 0.402–1.153 | 0.152 |
| F | 92 | 59 | |||||||
| Pathology | Adenocarcinoma | 150 | 1.096 | 0.640–1.875 | 0.738 | 79 | 1.317 | 0.521–3.331 | 0.560 |
| SqCC or NSCLC not‐subtyped | 15 | 6 | |||||||
| ECOG PS | 0, 1 | 155 | 2.573 | 1.347–4.917 | 0.004 | 59 | 1.469 | 0.835–2.584 | 0.182 |
| ≥2 | 10 | 26 | |||||||
| Smoking | Smoker | 53 | 0.989 | 0.708–1.384 | 0.950 | 21 | 0.737 | 0.424–1.282 | 0.280 |
| Never‐smoker | 112 | 64 | |||||||
| Initial disease presentation | Metastatic | 129 | 0.724 | 0.498–1.051 | 0.089 | 65 | 0.581 | 0.322–1.049 | 0.072 |
| Recurred | 36 | 20 | |||||||
| NLR | ≤3 | 107 | 2.037 | 1.454–2.854 | 0.001 | 58 | 1.363 | 0.777–2.393 | 0.280 |
| >3 | 58 | 27 | |||||||
| Initial no. of metastatic sites | 1,2 | 88 | 1.457 | 1.059–2.003 | 0.021 | 60 | 2.406 | 1.389–4.166 | 0.002 |
| ≥3 | 77 | 25 | |||||||
CI, confidence interval; ECOG, Eastern Cooperative Oncology Group; HR, hazard ratio; NLR, neutrophil‐lymphocyte ratio; NSCLC, non‐small cell lung cancer; PS, performance status; SqCC, squamous cell carcinoma; TKI, tyrosine kinase inhibitor.