Table 1.

Demographics of participants

Participant	Age	Parity	Blood loss	Blood transfusion	Hba	Induction	Length of labour	Pain relief in labour	Mode of birth	Loss of consciousness	Surgical intervention to control bleedingb	Additional anaesthetic	HDU	Believed intervention worked for themc	Believed life threatened and savedc	Debriefed at 6 weeks
Consent at time
C01	33	G3 P2	900 ml	No	9.5	No	10 hours 18 minutes	Epidural	Rotational Forceps	No	No	No	No	Unclear	No	No
C02	25	G3 P0	4750 ml	No	8.3	Yes	13 hours 5 minutes	Diamorphine and spinal	Emerg. CS	No	No	No	Yes	Unclear	No	No
C04 Baby 4.9 kg	31	G3 P2	500 ml	No	8.6	Yes	6 hours 44 minutes	Diamorphine	Spontaneous	No	No	No	No	Unclear	No	No
C05 Placenta praevia	35	G5P2	2100 ml	Yes	11.1	N/A	N/A	Spinal	Emerg. CS No labour	No	No	No	No	Unclear	Yes	No
C08	35	G1 P0	900 ml	No	6.7	Yes	10 hours 38 minutes	Diamorphine	Spontaneous	No	Considered	No	No	Yes	Yes	No
C09	34	G1 P0	1300 ml	No	8.3	Yes	3 hours 15 minutes	None	Spontaneous	No	Yes	Spinal	No	Yes	Unclear	Yes
C10 Pregnancy loss	29	G1 P0	2000 ml	Yes	9.6	No	3 hours 15 minutes	None	Spontaneous	No	Yes	Spinal	Yes	Unclear	Unclear	No
C13	35	G2 P1	900 ml	Yes	8.9	No	2 hours 5 minutes	Entonox	Spontaneous	Partial	Yes	Yes	No	Yes	Yes	No
Consent waiver
Waiver 01 Hysterectomy	30	G3 P2	5000 ml	Yes	10.0	N/A	N/A	Spinal at CS	Elective repeat CS	Yes	Yes	GA	Yes	Yes	Yes	Yes
Waiver 02	31	G2 P1	4000 ml	Yes	9.7	Yes	17 hours 25 minutes	Diamorphine	Spontaneous	Yes	Yes	GA	Yes	Unclear	Yes	Yes
Waiver 13	40	G3 P2	2000 ml	No	9.6	No	8 hours 5 minutes	Diamorphine and Spinal	Rotational Forceps	Yes	Yes	GA	Yes	Unclear	No	Yes
Waiver 16 CK2	32	G2 P0	1000 ml	No	9.6	Yes	15 hours 43 minutes	Epidural	Simpsons Forceps	No	No	No	No	Yes	Yes	No
Waiver 20 Shoulder dystocia	28	G1 P0	2500 ml	Yes	10.1	Yes	24 hours 48 minutes	Diamorphine epidural and spinal	Rotational Forceps	Yes	Yes	No	Yes	Yes	Yes	No
Waiver 22	24	G3 P2	1000 ml	No	10.1	Yes	1 hour 36 minutes	Entonox	Spontaneous	Yes	No	No	No	Yes	Yes	No
Waiver and declined retrospective written consent
Waiver—Declined Twins	28	G2 P1	1000 ml	No	8.6	No	10 hours	Epidural	T1 Spontaneous T2 Simpsons Forceps	No	No	No	No	Yes	Yes	No

^aOn discharge.

^bSurgical intervention includes examination under anaesthetic, Bakri Balloon, B‐Lynch suture, vaginal pack, manual removal of products, hysterectomy.

^cAs reported by woman.