Table 2.

The clinical characteristics of the patients in the database

Clinical	n	Mean	SD	t	P
Age
> 65	115	1.318	0.696	2.046151	0.042
≤ 65	221	1.162	0.599
Gender
Female	128	1.172	0.626	-0.9746	0.331
Male	208	1.241	0.644
Stage
I-II	182	1.223	0.645	0.25043	0.802
III-IV	154	1.206	0.629
T
T0-2	128	1.035	0.57	-4.29037	0
T3-4	208	1.326	0.652
M
M0	325	1.216	0.636	0.178065	0.862
M1	11	1.178	0.695
N
N0	190	1.214	0.643	-0.02312	0.982
N1-3	146	1.216	0.631