| M | F | Overall patients | |
| Age | (27 - 60) Mean = 44.70 | (18 - 70) Mean = 44.42 | (18 - 70) Mean = 44.51 |
| Patient Numbers | n = 34 (32.4%) | n = 71 (67.6%) | n = 105 |
| SAH | n = 33 (31%) | n = 69 (66%) | n = 102 (97%) |
| Nerve compression | n = 1 (1%) | n = 2 (2%) | n = 3 (3%) |