Table 1.
Baseline demographic data for patients diagnosed with idiopathic normal pressure hydrocephalus
| Shunt total | VP shunt | LP shunt | VA shunt | |
| Total patients [Number] | 842 | 353 | 474 | 15 |
| Age, median (25%–75%) | 77 (73–80) | 76 (72–80) | 77 (73–81) | 77 (73–79) |
| Sex [Male number (%)] | 511 (63.1%) | 206 (58.4%) | 295 (62.2%) | 10 (66.7%) |
| mRS before shunt, median (25%–75%) | 3 (2–3) | 3 (2–3) | 2 (2–3) | 3 (3–4) |
| mRS after shunt, median (25%–75%) | 2 (1–2) | 2 (1–2) | 2 (1–2) | 2 (2–3) |
| mRS improvement [Number (%)] | 518 (61.5%) | 226 (64.0%) | 283 (59.7%) | 9 (60.0%) |
| Initial symptoms, number (%) | ||||
| Gait disturbances | 653 (77.6%) | 277 (78.5%) | 367 (77.4%) | 9 (60.0%) |
| Cognitive impairments | 296 (38.0%) | 124 (35.1%) | 166 (35.0%) | 6 (40.0%) |
| Urinary incontinence | 152 (20.2%) | 60 (17.0%) | 92 (19.4%) | 0 (0%) |
| Comorbidity, number (%) | ||||
| PVI | 489 (54.9%) | 221 (62.6%) | 267 (56.3%) | 1 (6.7%) |
| CILs | 78 (9.3%) | 37 (10.5%) | 41 (8.6%) | 0 (0%) |
| Hypertension | 357 (44.5%) | 146 (41.4%) | 204 (43.0%) | 7 (46.7%) |
| Hyperlipidemia | 123 (15.3%) | 48 (13.6%) | 72 (15.2%) | 3 (20.0%) |
| Diabetes mellitus | 156 (18.6%) | 62 (17.6%) | 90 (19.0%) | 4 (26.7%) |
| Cervical spondylosis | 31 (3.5%) | 16 (3.8%) | 15 (3.1%) | 0 (0%) |
| Lumbar spondylosis | 114 (11.3%) | 58 (13.9%) | 50 (9.3%) | 6 (35.3%) |
| Alzheimer’s disease | 108 (13.4%) | 38 (9.1%) | 67 (12.4%) | 3 (17.6%) |
mRS, modified Rankin scale; PVI, periventricular hyperintensity; CILs, chronic ischemic lesions; VP, ventriculoperitoneal; LP, lumboperitoneal; VA, ventriculo-atrial.