Patient demographics and proportions of blocks given by each investigator to the study
| Hyaluronidase (n=76) | No hyaluronidase (n=74) | ||
| Age range (years) | 37-96 | 52-93 | |
| Mean age | 77.14 | 76.51 | NS |
| Male:female ratio | 22:54 | 31:43 | NS |
| Blocks given by each investigator | |||
| SAR | 57 | 48 | |
| JEH | 8 | 14 | NS |
| RDF | 11 | 12 |