Fig. 6From: Postpartum haemorrhage (PPH) rates in randomized trials of PPH prophylactic interventions and the effect of underlying participant PPH risk: a meta-analysisComparison of methods for determining blood loss in trials for minor and major PPH. a Overall, there was no difference in the rates of minor PPH between trials using a measurement of blood loss and those using an estimation (Mann-Whitney U = 67, p = 0.75). b There was no difference in the rates of major PPH between trials using a measurement of blood loss and those using an estimation (Mann-Whitney U = 35, p = 0.72). PPH – postpartum haemorrhageBack to article page