Urothelial bladder carcinoma in young patients is characterized by a relatively good prognosis

Figures & data

Figure 1. Age distribution within the study group.

Figure 2. Sex distribution in the study groups.

Table I. Comparison of analyzed parameters between different age groups.

	Group 1 versus 2		Group 1 versus 3		Group 2 versus 3
Parameter/Group	Chi- square	P value	Chi- square	P value	Chi-square	P value
Sex ratio	0.54	0.82	0.75	0.39	5.03	0.02
Grade	20.92	0.00	36.96	0.00	7.28	0.05
Stage	11.25	0.02	14.64	0.01	11.49	0.02

Table II. Number and percentage of highly (G1), moderately (G2), and poorly (G3) differentiated tumors.

Parameter/Group		Group 1	Group 2	Group 3	P value
Grade (1973 WHO)	G1	21 (77.8%)	36 (30.5%)	510 (26.0%)	0.000
	G2	6 (22.2%)	72 (61.0%)	1113 (56.8%)
	G3	0 (0%)	10 (8.5%)	336 (17.2%)

Figure 3. Tumor grades in the study groups.

Table III. Stage of disease according to the TNM staging system.

Parameter/Group		Group 1	Group 2	Group 3	P value
Stage (2009 TNM)	Tis	0 (0%)	1 (0.8%)	46 (2.4%)	0.001
	Ta	27 (100%)	90 (76.3%)	1191 (62.7%)
	T1	0 (0%)	14 (11.9%)	366 (19.3%)
	≥T2	0 (0%)	13 (11.0%)	296 (15.6%)