Table 1.

Clinical–demographic features of patients with LUAD.

Feature	N (479)	Rate %
Age (years)
>65	251	52.4%
≤65	228	47.6%
gender
Female	256	53.4%
Male	223	46.6%
T classification
T1	165	34.5%
T2	254	53.0%
T3	44	9.2%
T4	16	3.3%
N classification
N0	317	66.2%
N1	93	19.4%
N2	69	14.4%
TNM stage
I	260	54.2%
II	120	25.1%
III	78	16.3%
IV	21	4.4%