Table 1

Clinicopathologic features of patients with lung adenocarcinomas examined for EGFR abnormalities in tumors and adjacent normal epithelium

Features/samplesEGFR status
Mutant (n = 24)Wild-type (n = 26)Total (n = 50)
Mean age (y)61.362.762.1
Gender
 Female19 (79%)13 (50%)32
 Male5 (21%)13 (50%)18
Ethnicity
 East Asian13 (54%)9 (35%)22
 Not East Asian11 (56%)17 (65%)28
Smoking history
 Never16 (67%)9 (35%)25
 Former7 (29%)10 (38%)17
 Current1 (4%)7 (27%)8
Stage of disease
 I11 (46%)15 (58%)26
 II5 (21%)4 (15%)9
 IIIA8 (33%)7 (27%)15