Characteristics

Local consolidation RT (n=26)

Observation (n = 22)

P value

Age (years)

˂60

16 (61.5%)

12 (54.5%)

0.77

≥60

10 (38.5%)

10 (45.5%)

Sex

Male

16 (61.5%)

17 (77.3%)

0.35

Female

10 (38.5%)

5 (22.7%)

ECOG performance status

0 - 1

17 (65.4%)

12 (54.5%)

0.56

2

9 (34.6%)

10 (45.5%)

Pathology

Squamous cell carcinoma

10 (38.4%)

8 (36.4%)

0.46

Adenocarcinoma

9 (34.6%)

9 (40.9%)

others

7 (27%)

5 (22.7%)

T stage

T1/T2

13 (50%)

7 (31.8%)

0.25

T3/T4

13 (50%)

15 (68.2%)

N stage

N0/N1

14 (53.8%)

14 (63.6%)

0.57

N2/N3

12 (46.2%)

8 (36.4%)

Response to Treatment

Partial

13 (50%)

7 (31.8%)

0.25

Stationary

13 (50%)

15 (68.2%)

Number of metastasis

1 - 3

21 (80.8%)

12 (54.5%)

0.07

4 - 5

5 (19.2%)

10 (45.5%)

EGFR

Negative

8 (30.8%)

7 (31.8%)

0.96

Positive

3 (11.5%)

2 (9.1%)

Not applicable

15 (57.7%)

13 (59.1%)

ALK

Negative

11 (42.3%)

8 (36.4%)

0.52

Positive

0 (0%)

1 (4.5%)

Not applicable

15 (57.7%)

13 (59.1%)

CNS metastasis

Yes

5 (19.2%)

6 (27.3%)

0.73

No

21 (80.8%)

16 (72.7%)

Site of metastasis

Single organ

14 (53.8%)

6 (27.3%)

0.06

Multiple organ

12 (46.2%)

16 (72.7%)