Mean (SD) ventricular measurements according to sex
| Measurement (mm) | Girls | Boys | p Value |
| Anterior horn width | 1.22 (0.85) | 1.30 (0.79) | 0.44 |
| Thalamo-occipital distance | 15.6 (3.4) | 17.5 (4.3) | 0.0002 |
| Third ventricle width | 0.99 (0.36) | 1.12 (0.93) | 0.3 |
| Fourth ventricle width | 5.30 (1.07) | 5.42 (1.00) | 0.56 |
| Fourth ventricle width | 4.73 (1.15) | 4.75 (1.06) | 0.92 |