Table 1. Patients’ characteristics and demographic data.
| Characteristics | N=103 |
|---|---|
| Age (years), median [range] | 65 [28-93] |
| Gender, n (%) | |
| Male | 47 (45.6) |
| Female | 56 (54.4) |
| Smoking status, n (%) | |
| NS | 69 (67.0) |
| Former-smokers | 20 (19.4) |
| Current-smokers | 14 (13.6) |
| ECOG PS | |
| 0 | 9 (8.7) |
| 1 | 59 (57.3) |
| 2 | 19 (18.5) |
| 3–4 | 16 (15.5) |
| N-stage, n (%) | |
| N0 | 19 (18.4) |
| N1 | 5 (4.9) |
| N2 | 31 (30.1) |
| N3 | 48 (46.6) |
| M-stage, n (%) | |
| M1a | 38 (36.9) |
| M1b | 65 (63.1) |
| EGFR mutation status, n (%) | |
| Wild type | 43 (41.7) |
| Exon 19 deletions | 28 (27.2) |
| Exon 21 L858R | 27 (26.2) |
| Other mutations* | 5 (4.9) |
*, includes complex mutation. ECOG PS, Eastern Cooperative Oncology Group performance status. NS, non-smokers; EGFR, epidermal growth factor receptor.