Table 2.
Cross table for secondary versus. unknown etiology of ventriculomegaly in 147 patients with chronic adult hydrocephalus.
| Characteristic | N | Secondary, 26 (18%) | Unknown, 121 (82%) | p value | q-value |
|---|---|---|---|---|---|
| Sex | 147 | 0.99b | 0.994d | ||
| Females | 11 (42%) | 51 (42%) | |||
| Males | 15 (58%) | 70 (58%) | |||
| Hydrocephalus morphology | 147 | 0.19b | 0.494d | ||
| Tetra-ventricular | 6 (23%) | 44 (36%) | |||
| Tri-ventricular | 20 (77%) | 77 (64%) | |||
| Aqueductal CSF stroke volume (μL) | 147 | 78 (158)a | 89 (127) | 0.53c | 0.66d |
| Age at diagnosis (years) | 147 | 70 (16)a | 74 (12) | 0.20c | 0.49d |
| Low burden of ePVS | 147 | 8 (31%) | 26 (21%) | 0.31b | 0.51d |
N: number. The patients were considered with a low enlarged perivascular spaces (ePVS) burden when less than 11 ePVS were found at both the levels of basal ganglia and of periventricular parenchyma.
aMedian (interquartile range).
bPearson's Chi-squared test.
cWilcoxon rank sum test.
dFalse discovery rate correction for multiple testing.