Association of Epidermal Growth Factor Receptor Mutations with Metastatic Presentations in Non-Small Cell Lung Cancer

Table 1

Patient characteristics (𝑛=125).

Characteristic	Number of patients (%)
Age (years)
Median	63 (range, 28–83)
Gender
Male	87 (70)
Female	38 (30)
Smoking history
Never	45 (36)
Ever	80 (64)
Histopathology
ADC*	81 (65)
Other	44 (35)
Tumor size (cm)
Median	4.2 (range, 1.0–10.0)
T stage
T1-2	84 (67)
T3-4	41 (33)
N stage
N0–2	86 (69)
N3	39 (31)
M Stage
M0	43 (34)
M1	82 (66)
Metastatic sites
Pleura	26 (21)
PMME	13
Lung	38 (30)
Brain (𝑛=122)	23 (19)
Bone (𝑛=124)	37 (30)
Liver	7 (6)
Other^†	14 (11)

Abbreviations: ADC, adenocarcinoma; PMME, pleural metastases with minimal effusion.
*Two bronchioloalveolar carcinomas.
^†Including nine adrenal gland metastases.