Table 1.
Patient characteristics
| Characteristic | Number (%) |
|---|---|
| Total patients | 57 |
| Age (years) | |
| Median age | 67 |
| Range | 32–82 |
| Sex | |
| Male | 27 (47 %) |
| Female | 30 (53 %) |
| Smoker | 27 (47 %) |
| Diabetes | 6 (11 %) |
| Hypertension | 14 (25 %) |
| Histological type | |
| Adenocarcinoma | 50 (88 %) |
| Squamous cell carcinoma | 7 (12 %) |
| M staging | |
| M1a | 20 (35 %) |
| M1b | 37 (65 %) |
| EGFR mutation | |
| Negative | 43 (75 %) |
| Positive | 14 (25 %) |
| ECOG performance status | |
| 0 | 13 (23 %) |
| 1 | 37 (65 %) |
| 2 | 5 (9 %) |
| 3 | 2 (3 %) |
| Initial chemotherapy regimen | |
| Platinum-based combination chemotherapy | 52 (91 %) |
| Tyrosine kinase inhibitor | 5 (9 %) |
| Palliative radiotherapy for metastatic lesion | 16 (28 %) |
EGFR epidermal growth factor receptor, ECOG Eastern Cooperative Oncology Group