Table I.
The baseline demographics of the patients.
| Characteristics | N=64 (%) |
|---|---|
| Age (years) | |
| Mean ± SD | 67±8 |
| Gender | |
| Female | 27 (42) |
| Male | 37 (58) |
| Pathological stage | |
| IA | 22 (34) |
| IB | 16 (25) |
| IIA | 4 (6) |
| IIB | 3 (5) |
| III | 0 (0) |
| IV (recurrence included) | |
| Chemotherapy | |
| 1st line | 6 (9) |
| 2nd line | 6 (9) |
| 3rd or later line | 7 (11) |
| Pathological classification | |
| Adenocarcinoma | 51 (80) |
| Squamous cell carcinoma | 10 (16) |
| Others | 3 (5) |
| EGFR mutation | |
| Positive | 22 (34) |
| Negative | 31 (48) |
| Unknown | 11 (17) |
EGFR, epidermal growth factor receptor.