| Demographic variable | V-P shunt Group (n = 26) | ETV Group (n = 26) | P-Value | |
| Infection | Yes (%) | 14 (53.8%) | 6 (23.1%) | 0.045* |
| No (%) | 12 (46.2%) | 20 (76.9%) | ||
| Obstruction | Yes (%) | 11 (42.3%) | 9 (34.6%) | 0.776 |
| No (%) | 15 (57.7%) | 17 (65.4%) | ||
| OFC | The same (%) | 16 (61.5%) | 17 (65.4%) | 1.000 |
| Increased (%) | 10 (38.5%) | 9 (34.6%) | ||
| Revision surgery | Yes (%) | 14 (53.8%) | 9 (34.6%) | 0.264 |
| No (%) | 12 (46.2%) | 17 (65.4%) | ||