From: Sex differences in fetal intracranial volumes assessed by in utero MR imaging
Variable (cm3) | Gestational age (wks) | Female | Male | Male–female | P | ||
---|---|---|---|---|---|---|---|
 |  | Mean | SD | Mean | SD | Mean |  |
VV | 18–23 | 3.54 | 0.76 | 4.14 | 1.40 | 0.60 | 0.070 |
 | 24–27 | 4.61 | 1.47 | 5.88 | 1.87 | 1.27 | 0.011 |
 | 28–30 | 6.16 | 2.01 | 6.82 | 2.00 | 0.66 | 0.27 |
 | 31–37 | 7.70 | 2.36 | 8.91 | 2.75 | 1.21 | 0.12 |
EAV | 18–23 | 31.8 | 8.46 | 31.2 | 8.53 | − 0.6 | 0.79 |
 | 24–27 | 60.2 | 14.5 | 73.6 | 17.2 | 13.4 | 0.005 |
 | 28–30 | 94.5 | 12.5 | 102.4 | 17.8 | 7.9 | 0.088 |
 | 31–37 | 128.7 | 23.5 | 138.8 | 24.0 | 10.1 | 0.15 |
BPV | 18–23 | 44.1 | 14.3 | 44.1 | 13.2 | 0.07 | 0.98 |
 | 24–27 | 91.6 | 19.3 | 104.0 | 20.0 | 12.4 | 0.034 |
 | 28–30 | 140.4 | 15.5 | 150.2 | 22.2 | 9.8 | 0.087 |
 | 31–37 | 236.1 | 36.4 | 256.2 | 38.1 | 18.1 | 0.12 |
TICV | 18–23 | 79.4 | 22.5 | 79.5 | 20.7 | 0.1 | 0.99 |
 | 24–27 | 156.4 | 32.4 | 183.5 | 37.0 | 27.1 | 0.010 |
 | 28–30 | 241.0 | 23.1 | 259.4 | 35.0 | 18.3 | 0.040 |
 | 31–37 | 360.7 | 54.8 | 390.8 | 52.2 | 30.1 | 0.056 |