Table 1.

Clinicopathological characteristics of non-small cell lung cancer patients and healthy controls

Clinical characteristic	NSCLC (n = 100)	Control (n = 100)	P
Age
<60	49(51.6 %)	46(48.4 %)	0.706
≥60	51(48.6 %)	54(51.4 %)
Gender
Male	65(48.1 %)	70(51.9 %)	0.538
Female	35(53.8 %)	30(46.2 %)
Smoking status
Current	32(45.7 %)	38(54.3 %)	0.624
Former	53(52.5 %)	48(47.5 %)
Never	15(51.7 %)	14(48.3 %)
TNM stage
Stages I–II	57	–	–
Stage III	43	–	–
Differentiation
G1 + G2	55	–	–
G3	45	–	–
Lymph node metastasis
Negative	37	–	–
Positive	63	–	–
Histological type
Adenocarcinoma	44	–	–
Squamous carcinoma	46	–	–
Others	10	–	–