4.1 Main Findings
This study did not find an association between high volume IV fluids and PPH after adjusting for demographic and clinical factors. PPH ≥ 500 mL was associated with maternal BMI ≥ 35, nulliparity, women born in South-East Asia, emergency caesarean birth, and birth weight ≥ 4kg. Maternal BMI>35 and duration of active labour ≥ 12 hours was associated with PPH ≥ 1000 mL after adjusting for confounding factors. These associations were expected and supports the findings of other research exploring risk factors for PPH. (7, 8, 21-23) A second unexpected finding was the positive association between high-volume IV fluids and emergency caesarean section.