Comparisons of MR imaging volume data in female and male adults
| Variables | Female Subjects | Male Subjects | P Values | ||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | ||
| Intracranial (mL) | 1291.0 | 135.0 | 1425.0 | 138.0 | .001 |
| GM (mL) | 645.9 | 89.6 | 730.6 | 99.3 | .003 |
| WM (mL) | 469.8 | 73.3 | 489.1 | 69.6 | .333 |
| % GM | 50.0 | 4.1 | 51.3 | 5.0 | .302 |
| % WM | 36.4 | 4.0 | 34.4 | 4.1 | .085 |
| GM/WM | 1.4 | 0.2 | 1.5 | 0.3 | .078 |