Table 1.
Demographical data and preoperative symptoms
| n | ||
|---|---|---|
| Age, years (range) | 455 | 75 (50–89) |
| Sex, male (%) | 455 | 257 (57) |
| Time from examination to shunt, months, median (IQR) | 455 | 6 (4–8) |
| Time from operation to follow-up, months, median (IQR) | 376 | 12 (12–13) |
| Comorbidities | ||
| Diabetes, n (%) | 455 | 115 (25) |
| Hypertension, n (%) | 455 | 291 (64) |
| Hyperlipidemia, n (%) | 455 | 160 (35) |
| Ischemic stroke or transient ischemic attack, n (%) | 455 | 53 (12) |
| Cardiovascular disease, n (%) | 455 | 57 (13) |
| Oral anticoagulants, n (%) | 455 | 35 (8) |
| Preoperative symptoms | ||
| Total iNPH scale, median (IQR) | 453 | 50 (37–62) |
| Motor domain, median (IQR) | 451 | 32 (18–55) |
| Cognitive domain, median (IQR) | 265 | 50 (33–67) |
| Continence domain, median (IQR) | 439 | 60 (40–80) |
| Balance domain, median (IQR) | 442 | 67 (67–83) |
| MMSE, median (IQR) | 446 | 25 (21–27) |
| Evans’ index, median (IQR) | 455 | 0.37 (0.34–0.40) |
| DESH, n (%) | 455 | 382 (84) |
IQR interquartile range, iNPH idiopathic normal pressure hydrocephalus; MMSE mini-mental state examination, DESH disproportionately enlarged subarachnoid-space hydrocephalus