| Group 1 (PDVR) n = 71 | Group 2 (PD) n = 71 | p-value | |
| Age, years (range) | 68.50 (49 - 84) | 68.00 (24 - 83) | 0.975 |
| Gender | |||
| male (%) | 38 (53.52) | 38 (53.52) | 1 |
| female (%) | 33 (46.48) | 33 (46.48) | |
| ASA-Score | |||
| 2 (%) | 45 (63.38) | 45 (63.38) | 1 |
| 3 (%) | 26 (36.62) | 26 (36.62) |