The number and proportions of neurodevelopment outcome status at 3–4 years in 42 fetuses in relation to the sex of the child and the symmetry of ventriculomegaly (unilateral or bilateral trigone measurements 10–12 mm) diagnosed in utero
| Normal neurodevelopmental outcome | Abnormal neurodevelopmental outcome | |
| All fetuses with IMVM (n=42) | 35 (83%) | 7 (17%) |
| Male fetuses with IMVM (n=33) | 28 (85%) | 5 (15%) |
| Female fetuses with IMVM (n=9) | 7 (78%) | 2 (22%) |
| Fetuses with unilateral IMVM (n=23) | 23 (100%) | 0 (0%) |
| Male fetuses with unilateral IMVM (n=18) | 18 (100%) | 0 (0%) |
| Female fetuses with unilateral IMVM (n=5) | 5 (100%) | 0 (0%) |
| Fetuses with bilateral IMVM (n=19) | 12 (63%) | 7 (37%) |
| Male fetuses with bilateral IMVM (n=15) | 10 (67%) | 5 (33%) |
| Female fetuses with bilateral IMVM (n=4) | 2 (50%) | 2 (50%) |
IMVM, Isolated mild ventriculomegaly.