Stratification of patients with SIH by type, management, and outcome and demographics
| No. of Patients | M | F | Avg Age (yr) | OP Avg | OP Range | Effectively Treated with EBP | No. of Patients to Surgery | Continued Symptoms | |
|---|---|---|---|---|---|---|---|---|---|
| SLEC-P | |||||||||
| Type 1 | 15 | 8 | 7 | 46 | NA | NA | 4 | 11 | 1 Back pain |
| Type 2 | 4 | 0 | 4 | 31 | NA | NA | 3 | 1 | 1 Mild headache, 1 back pain |
| Not defined | 2 | 2 | 0 | 53 | NA | NA | 2 | 0 | |
| SLEC-N | |||||||||
| Type 3 | 7 | 2 | 5 | 52 | 8.4 | 0–12 | 0 | 7 | 1 Awaiting surgery |
| Type 4 | 1 | 1 | 0 | 56 | 0 | 0 | 0 | 1 | |
| Not found | 2 | 0 | 2 | 58 | 10 | 10 | 0 | 0 | Continue unchanged |
Note:—Avg indicates average; OP Avg, average CSF opening pressure; OP Range, the range of CSF opening pressures seen; NA, not applicable; M, male; F, female.