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Demographic data of the patient material
| All patients | Shunt Group | ||
| Non-Responders | Responders | ||
| Number | 62 | 10 | 35 |
| Age (yrs) | 72 (37 - 85) | 68 (47 - 81) | 72 (47 - 81) |
| Sex (F/M) | 31/31 | 5/5 | 18/17 |
| Clinical state | |||
| Duration of symptoms (yrs) | 2.8 (0.3 - 10) | 3 (1 - 10) | 3 (1 - 8) |
| NPH score (15-3) | 9 (4 - 14) | 11 (6 - 14) | 9 (4 - 13) |
| Radiology | |||
| Evan's index | 0.4 (0.3 - 0.5) | 0.4 (0.3 - 0.5) | 0.4 (0.3 - 0.5) |
