Table 3. Association between histological grade and p53 staining percentage of positive cells .

¹Chi-squared test

*: significant (p<0.05)

Histological grade	p53 staining score					P-value1
	0 (n=12)	1+ (n=0)	2+ (n=13)	3+ (n=10)	4+ (n=15)
Invasive urothelial carcinoma (n=24)	0	0	4	5	15	0.009225*
Low-grade papillary urothelial carcinoma (n=12)	6	0	6	0	0
High-grade papillary urothelial carcinoma (n=14)	6	0	3	5	0
Total	12	0	13	10	15