Huang 2003.

Methods	RCT
Participants	6758 low‐risk women in labour
Interventions	Intervention group: women accompanied by trained personnel who provided physiological and psychological support in the whole process of birth until 2 hours after birth. Control group: unclear. Intervention compared with "conventional therapies"
Outcomes	Incidence of postpartum haemorrhage, puerperal infection, neonatal morbidity, neonatal aspiration pneumonia, fetal distress, maternal satisfaction/anxiety
Notes	Communication sent to author regarding details of randomisation process, the nature of the intervention, and information to allow classification for analysis subgroups. Awaiting response