Table 1.

Study enrolment and follow-up of fetuses according to ventriculomegaly (VM) group

	All	Group 1 Normal	Group 2 Isolated VM, 10–12 mm	Group 3 Isolated VM, >12 mm	Group 4 Other CNS findings
Total	314	32	133	32	117
Lost from standardized postnatal follow-up due to:
Elective termination	52	0	7	5	40
Stillbirth/spontaneous pregnancy loss	5	0	2	0	3
Neonatal demise	4	0	0	0	4
Live birth surviving neonatal period (% of Total)	253 (81)	32 (100)	124 (93)	27 (84)	70 (60)
Lost from study due to postnatal exclusion*	17	1	6	1	9
Available for postnatal enrollment	236	31	118	26	61
Lost to follow-up or declined postnatal testing	93	16	47	9	21
Postnatal neurodevelopmental testing (% of those available for postnatal enrollment)	143 (60)	15 (48)	71 (61)	17 (65)	40 (66)
Known outcome† (% of Total)	221 (70)	16 (50)	86 (65)	23 (72)	96 (82)

Data are n or n (%).

^*Known abnormal outcome (syndromes, conditions or karyotypes associated with well-documented developmental delays or abnormal neurological findings) but excluded because of follow-up elsewhere.

^†Equals total minus those lost to follow-up. CNS, central nervous system.