| Authors | Clough 2003 | Rietjens 2007 | Staub 2008 | Fitoussi 2010 | Tuomo 2010 | Oscar 2012 | Our study |
| Patients number | 101 | 148 | 298 | 540 | 90 | 221 | 48 |
| pT | - | pT2 | pT2 | pT2 | pT1 | 20.5 | pT2 |
| RBNIS rate (%) | 32% | 9% | 13.1% | 18.9% | 16.2% | 12.7% | 14.5% |
| Follow up (months) | - | 74 | 52 | 49 | 26 | 30 | 22 |
| Locale recurrence rate (%) | 9.4% | 3% | 6.5% | 6.8% | - | - | 13% |