Changes in the clinical symptoms at 1 yeara
| Presurgical Score | Postsurgical Score | Difference | Postsurgical Changes (No.) (%) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| No. | Median (IQR) | No. | Median (IQR) | Median (IQR) | P Valueb | Improved | Stable | Deteriorated | |
| iNPHGS total [12] | 60 | 6.0 (5.0–8.0) | 60 | 5.0 (3.0–6.0) | 1.0 (0.5–3.0) | <.001 | 45 (75) | 10 (17) | 5 (8) |
| iNPHGS gait [4] | 60 | 2.0 (2.0–3.0) | 60 | 2.0 (1.0–3.0) | 1.0 (0.5–1.0) | <.001 | 32 (53) | 24 (40) | 4 (7) |
| iNPHGS cognitive [4] | 60 | 2.0 (2.0–3.0) | 60 | 2.0 (1.3–3.0) | 0 (0–1.0) | .001 | 20 (33) | 36 (60) | 4 (7) |
| iNPHGS urinary [4] | 60 | 2.5 (1.0–3.0) | 60 | 1.0 (0–1.0) | 0 (0–1.0) | <.001 | 29 (48) | 24 (40) | 7 (12) |
| TUG | 55 | 15.1 (11.0–20.6) | 53 | 11.5 (9.2–14.5) | 2.5 (0.8–4.2) | <.001 | 35 (66) | 13 (25) | 5 (9) |
| MMSE [30] | 60 | 22.0 (20.0–24.8) | 59 | 23.0 (21.0–27.0) | 1 (−1–3.0) | .014 | 19 (32) | 32 (54) | 8 (14) |
Note:—IQR indicates interquartile range.
↵a Clinical improvement and deterioration were defined as ≥1-point improvement or deterioration on the iNPHGS, ≥10% reduction or increase in TUG time, and ≥3 points gained or lost on the MMSE. The numbers in square brackets refer to the maximum scores for the tests.
↵b Wilcoxon signed rank test for pre- and postsurgery comparisons.