PIGU overexpression and regulation of cellular biological functions in bladder cancer

Table 1 The relationship between PIGU protein expression levels and clinicopathological features based on in-house bladder cancer tissue microarrays

Parameters	Group	Number	mean ± SD	Z	P value
Tissue	Tumor	121	10.65 ± 2.14	-7.858	P < 0.001a
	Non-tumor	32	5.56 ± 2.68
Gender	Male	102	10.85 ± 1.99	-2.506	P = 0.012b
	Female	16	9.31 ± 2.70
Age	< 65	60	10.58 ± 2.23	-0.227	0.821
	≥ 65	58	10.71 ± 2.09
T stage	T1-T2	97	10.55 ± 2.24	-0.958	0.338
	T3-T4	21	11.10 ± 1.67
N stage	N0	111	10.59 ± 2.18	-0.980	0.327
	N1-N3	7	11.43 ± 1.51
M stage	M0	118	10.64 ± 2.15	-	-
	M1	0	-
Pathological grade	I-II	62	10.48 ± 2.16	-1.363	0.173
	III-IV	50	11.00 ± 1.95

^aP < 0.001 vs group non-tumor.

^bP = 0.012 vs group female.

The test method is the Mann-Whitney U test. T stage: Tumor pathological stage; N stage: Node pathological stage; M stage: Metastasis pathological stage.