Table 1.

Pregnancy and diagnosis details of the women (n=14) by three groups

Group	Gestational age range risk of VP first identified or diagnosed (weeks)*	Gravidity & parity #	Risk factors	Mode of birth	Gestation at birth	Time between interview and birth (months)
1. Antenatal diagnosis: confirmed during pregnancy	U/S (18-20)	G2P1	IVF, Placenta praevia	Elective CS	35	< 6
	U/S (32-34)	G1P0	IVF, Placenta praevia	Elective CS	36	> 12
	U/S (32-34)	G2P1	Bi-lobed, Low lying placenta	Elective CS	37	< 6
	U/S (18-20)	G1P0	IVF, Placenta praevia	Elective CS	35+4	> 12
	U/S (26-28)	G1P0	Placenta praevia	Urgent CS	35+4	< 6
	U/S (18-20)	G1P0	Velamentous cord insertion	Elective CS	37	< 6
2. Antenatal diagnosis: not confirmed at follow up ultrasound(s)	U/S (26-28)	G1P0	Tri-lobed placenta, low lying placenta	Elective CS	37+5	Unknown
	U/S (18-20)	G2P1	Placenta praevia	Elective CS	37	<6
	U/S (18-20)	G1P0	low lying placenta	NVB	40	< 6
	U/S (32-34)	G2P1	low lying placenta	Elective CS	37 +4	> 12
	U/S (18-20)	G1P0	Velamentous cord insertion	Emergency CS	36	> 12
3. Diagnosed during birth	CS	G4P1	None	Elective CS	37 +4	> 12
	Vaginal bleeding and CS	G1P0	IVF	Emergency CS	40+2	< 6
	Vaginal bleeding and CS	G1P0	None	Emergency CS	41	> 12

*Gestational age range is presented to protect women’s identity.

#Gravidity/parity at the pregnancy VP was diagnosed.

US: Ultrasound, G: Gravidity P: Parity, CS: Caesarean Section, IVF: In-vitro-fertilisation.