Table 1.

Clinicopathological characteristics of patients with lung cancer

Characteristic	N
Gender
male	26
female	19
Age（years）
≥60	31
＜60	14
Tumor stage
Ⅰ-Ⅱ	20
Ⅲ	25
Metastasis
No	24
Yes	21

The inclusion criteria were: Patients with complete clinical data; Patients had not received chemotherapy, radiotherapy, or immuno-therapy before surgery. The exclusion criteria were: Lack of clinical data; Area of necrosis in the tumor tissue > 60%; and Presence of additional malignant tumors.