Table 2.

The expression of differentially expressed genes in urinary exosomes of bladder cancer case group and normal control group

Variables	n	Lower expression		Higher expression		χ2	P value
		n	%	n	%
Age						0.486	0.486
<65	24	10	34.5	13	43.3
≥65	36	19	64.5	17	56.7
Gender						0.074	0.786
Male	48	24	82.8	24	80.0
Female	11	5	17.2	6	20.0
Tumor size						0.674	0.412
<1 cm	15	6	20.7	9	30.0
≥1 cm	44	23	79.3	21	70.0
Tumor number						0.141	0.708
<3	34	16	55.2	18	60.0
≥3	25	13	44.8	12	40.0
Histological types						4.984	0.026
NMIBC	27	9	31.0	18	60.0
MIBC	32	20	69.0	12	40.0
Pathological grading						4.051	0.044
Low-grade	24	8	27.6	16	53.3
High-grade	36	21	72.4	14	46.7
Clinical stages						4.965	0.026
I	35	13	44.8	22	73.3
II-III	24	16	55.2	8	26.7

MIBC, muscle invasive bladder cancer; NMIBC, non-muscle invasive bladder cancer.