Table 1 Patient characteristics

Enrolled patients, n

30

Male sex, n (%)

7 (23.3)

Age, Median (range)

69.0 (54–82)

Performance status, n (%)

 0

22 (73.3)

 1

6 (20.0)

 2

2 (6.6)

 3

0

 4

0

Smoking history (pack-years)

 0

16

 1–19

5

 ≥ 20

9

Histology, n (%)

 adenocarcinoma

28 (93.3)

 adenosquamous

2 (6.6)

Stage, n (%)

 IIIB

2 (6.6)

 IV

21 (70.0)

 postoperative recurrence

7 (23.3)

Type of mutations, n (%)

 19del

25 (83.3)

 L858R

5 (16.6)

Metastasis, n (%)

 brain

7 (23.3)

 liver

4 (13.3)

 adrenal

7 (23.3)

 bone

16 (53.3)

 malignant pleural effusion

10 (33.3)

 extrathoracic

20 (66.6)