oxytocic drugs used routinely appear to reduce the risk of postpartum haemorrhage by about 40 % ( typical odds ratio 0.57 , 95 % confidence interval 0.44-0.73 ) implying that for every 22 women given such an oxytocic , one postpartum haemorrhage could be prevented .
C0019080
haemorrhage
C0032797
postpartum haemorrhage