Table 2.

Clinical characteristics of bladder cancer patients from TCGA and GSE13507 datasets.

Clinical characteristics	TCGA cohort (n = 412)	TCGA train (n = 243)	TCGA test (n = 160)	GSE13507 cohort (n = 165)
Age at diagnosis (year)
≤65	162	95	65	74
>65	250	148	95	91
Gender
Male	304	177	121	135
Female	108	66	39	30
Grade
Low grade	21	10	10	105
High grade	388	233	147	60
Stage
I/II	133	77	53	135
III/IV	277	166	105	30