Table 4.

The demographic and clinicopathological data of the patients.

Characteristics	Patients (n=184)
Gender
Male	103 (56.0%)
Female	81 (44.0%)
Age
>60	95 (51.6%)
≤ 60	89 (48.4%
LN metastasis
>2	46 (25.0%)
≤ 2	138 (75.0%)
Chemotherapy
Yes	151 (82.1%)
No	33 (17.9%)
Radiotherapy
Yes	41 (22.3%)
No	143 (77.7%)
Immunotherapy
Yes	42 (22.8%)
No	142 (77.2%)
Surgical Method
Open	17 (9.2%)
VATS	167 (90.8%)
Air dissemination
Yes	91 (49.5%)
No	93 (50.5%)
Vascular invasion
Yes	90 (48.9%)
No	94 (51.1%)
Pathological stage
IIIA	115 (62.5%)
IIB	69 (37.5%)