Demographical and clinical characteristics of the patients
| Age | 71.32+10.6 | (%) |
| Age >65 years | 169 | 73.5 |
| Gender | ||
| Male | 176 | 76.5 |
| Female | 54 | 23.5 |
| First diagnosis | ||
| pTaG1 | 116 | 50.4 |
| pTaG2 | 32 | 13.9 |
| pTaG3 | 14 | 6.1 |
| pT1G2 | 3 | 1.3 |
| pT1G3 | 11 | 4.8 |
| CIS | 54 | 23.5 |
| Previous BCG | 75 | 32.6 |
| Previous MMC | 7 | 3.3 |
BGC, Bacillus Calmette-Guérin; CIS, carcinoma in situ; MMC, mitomycin.