Clinical features of the studies included in the network meta-analysis
| Study | Patients | Study features | Mean age | Male (%) | Follow-up (months) | Recurrence (%) |
| Nishida et al 18 | 251 | Observational | 69 | 26.6 | 31 | 2.7 |
| Matabuena Gomez-Limon et al 17 | 66 | Observational | 67 | 4.5 | 48 | 7.5 |
| Arcari et al 19 | 234 | Observational | 72 | 8.1 | 44 | 3.4 |
| Silverio et al 8 | 825 | Observational | 72 | 9.6 | 24 | 4.3 |
| Arcari and Nuṅez et al 21 | 1593 | Observational | 70 | 9.9 | 41 | 4.8 |
| Xenogiannis et al 20 | 436 | Observational | 69 | 15.3 | 53 | 5.9 |