Table 1.

Clinical features of 504 patients with LUAD

Clinical features	TCGA database (n = 504)
Age	65.30 ± 10.03
Sex
Male	234
Female	270
Pathological Stage
I	270
II	119
III	81
IV	26
Unknown	8
T
T1	168
T2	269
T3	45
T4	19
Unknown	3
N
N0	325
N1	94
N2	71
N3	2
Unknown	12
M
M0	335
M1	25
Unknown	144