Table 1 Patient characteristics.
Factors | No. (%) |
|---|---|
Age (Years) | |
Median | 57.1 |
Range | 31–86 |
Gender | |
Male | 131 (61.7) |
Female | 81 (38.2) |
Pathology | |
Adenocarcinoma | 173 (81.6) |
Squamous | 21 (9.9) |
Other | 18 (8.4) |
Tumor Stage | |
IA | 7 (3.3) |
IB | 7 (3.3) |
IIA | 5 (2.3) |
IIB | 2 (0.9) |
IIIA | 10 (4.7) |
IIIB | 25 (11.7) |
IV | 156 (73.5) |
Smoking | |
Yes | 95 (44.8) |
No | 117 (55.1) |
Family history of malignancy | |
Yes | 11 (5.1) |
No | 201 (94.8) |
Brain metastasis | |
Yes | 40 (18.8) |
No | 172 (81.1) |
Xuanwei origin | |
Yes | 20 (9.4) |
No | 192 (90.5) |
Immediate prior treatment | |
First EGFR-TKI | 35 (16.5) |
Chemotherapy | 61 (28.7) |
Other | 29 (13.6) |
No | 87 (38.2) |
EGFR mutation-positive | 64 (30.1) |
EGFR T790M mutation-positive | 18 (8.4) |
