Table 2.
Baseline data for shunt intervention method comparison (ventriculoperitoneal shunt vs. lumboperitoneal shunt).
| Shunt total number | VP shunt number | LP shunt number | VP vs. LP p-value | |
|---|---|---|---|---|
| Patient number (%) | 974 | 417 (42.8%) | 540 (55.4%) | |
| Age: mean (SD) | 77.29 (6.12) | 76.9 (6.20) | 77.6 (6.08) | 0.087 |
| Gender male (%) | 578 | 240 (57.6%) | 326 (60.1%) | |
| INITIAL SYMPTOMS | ||||
| Gait disturbance | 749 | 324 (77.3%) | 416 (77.0%) | |
| Cognitive impairment | 353 | 151 (36.1%) | 194 (35.9%) | |
| Urinary incontinence | 185 | 74 (17.7%) | 111 (20.6%) | |
| EXAMINATION | ||||
| PVI | 569 | 263(63.1%) | 305(56.5%) | |
| CIL | 94 | 46(11.0%) | 48(8.9%) | |
| COMORBIDITY | ||||
| Hypertension | 403 | 166 (39.8%) | 230 (42.6%) | |
| Hyperlipidemia | 139 | 55 (13.2%) | 81 (15%) | |
| Diabetes mellitus | 181 | 77 (18.5%) | 100 (18.5%) | |
| Cervical spondylosis | 33 | 16 (3.8%) | 17 (3.1%) | |
| Lumbar spondylosis | 114 | 58 (13.9%) | 50 (9.3%) | |
| Alzheimer disease | 108 | 38 (9.1%) | 67 (12.4%) | |
| OUTCOME | ||||
| mRS grade at baseline: mean (SD) | 2.70 (0.77) | 2.73 (0.76) | 2.66 (0.76) | 0.561 |
| mRS outcome grade: mean (SD) | 2.00 (0.93) | 2.01 (0.92) | 1.98 (0.93) | 0.927 |
| mRS improved | 582 | 254 (60.9%) | 317 (58.7%) | |
Data represent the number (percentage) or mean (standard deviation).
VP, ventriculoperitoneal; LP, lumboperitoneal; PVI, Periventricular hyperintensity; CIL, Chronic ischemic lesion; mRS, modified Rankin Scale.
We examined subjects in the shunt intervention group to compare ventriculoperitoneal shunts to lumboperitoneal shunts using the Mann-Whitney U-test.