Table 1. Characteristics of the analyzed patients according to the two sub-staging systems.

	T1a (n= 80)	T1b (n=26)	p	T1m (n=58)	T1e (n=48)	p
Age	68±10.7	67.7±9.5	0.916	668±10	69.4±10.2	0.203
BMI (kg/m2)	26.6±3.4	28.2±43	0.065	26.9±3.2	27±4.2	0.879
Tumor (cm)	3.7±1.9	4.1±1.2	0.372	3.38±1.6	4.38±1.8	0.005*
Time to recurrence (mo.)	12.7±13.7	12.4±16.2	0.951	14.7±13.8	10.3±14.6	0.227
Time to progression (months)	13.7±14.7	17.5±20.4	0.603	15.9±16	14±17,2	0.781
Follow-up (months)	44±17.7	43.9±21.5	0.971	45±18.6	42±18.5	0.546
Grade (Low/High)	46/34	3/23	0.001*	34/24	15/33	0.005*
Percentage of patients who experienced recurrence n (%)	42 (52.5%)	20 (76.9%)	0.028*	32 (55.2%)	30 (62.5%)	0.446
Percentage of patients who experienced progression n (%)	12(15%)	7(26.9%)	0.169	8 (13.8%)	11 (22.9%)	0.223
No. of radical cystectomies offered to patients	12 (14.6%)	11 (45.6%)	0.002*	6 (10%)	17 (35%)	0.006*