Research Article

Clinical Characteristics and Survival Outcomes for Non-Small-Cell Lung Cancer Patients with Epidermal Growth Factor Receptor Double Mutations

Table 1

Baseline characteristics of 45 patients with EGFR double mutations.

CharacteristicsTotal

(%)
19Del + L858R

(%)
19Del + T790M

(%)
L858R + T790M

(%)

Gender8.460.0145
 Male22 (48.9%)13 (76.5%)5 (35.7%)4 (28.6%)
 Female23 (51.1%)4 (23.5%)9 (64.3%)10 (71.4%)
Age (years)3.230.1986
 <6026 (57.8%)7 (41.2%)10 (71.4%)9 (64.3%)
 ≥6019 (42.2%)10 (58.8%)4 (28.6%)5 (35.7%)
Smoking2.700.2588
 Yes13 (28.9%)7 (41.2%)2 (14.3%)4 (28.6%)
 No32 (71.1%)10 (58.8%)12 (85.7%)10 (71.4%)
Clinical stage2.380.3048
 I-II13 (28.9%)3 (17.6%)6 (42.9%)4 (28.6%)
 III-IV32 (71.1%)14 (82.4%)8 (57.1%)10 (71.4%)
ECOG PS1.180.5539
 0-140 (88.9%)14 (82.4%)13 (92.9%)13 (92.9%)
 25 (11.1%)3 (17.6%)1 (7.1%)1 (7.1%)
EGFR-TKIs2.710.2578
 Yes24 (53.3%)11 (64.7%)8 (57.1%)5 (35.7%)
 No21 (46.7%)6 (35.3%)6 (42.9%)9 (64.3%)
Pathology0.970.6145
 Adenocarcinoma43 (95.6%)16 (94.1%)13 (92.9%)14 (100%)
 Squamous carcinoma2 (4.4%)1 (5.9%)1 (7.1%)0 (0%)