1.

351例人群的基本临床信息

Clinical characteristics of all the subjects

Category	n (%)
AD: adenocarcinoma; SCC: squamous cell carcinoma; SCLC: small cell lung cancer; TNM: tumor-node-metastasis.
All the subjects (n=351)
Gender
Male	191 (54.4)
Female	160 (45.6)
Age (yr)
> 60	152 (43.3)
≤60	199 (56.7)
Types of diseases
Malignant tumor	178 (50.7)
Benign lung disease	69 (19.7)
Health control	104 (29.6)
Smoking history
Ever	126 (35.9)
Never	225 (64.1)
Malignant tumor (n=178)
Metastasis
None	86 (48.3)
Yes	92 (51.7)
TNM stage
Ⅰ	71 (39.9)
Ⅱ	17 (9.6)
Ⅲ	46 (25.8)
Ⅳ	44 (24.7)
Histology
AD	112 (62.9)
SCC	29 (16.3)
SCLC	14 (7.9)
Others	23 (12.9)