 Delivery by 35–37 completed weeks may be important to fetal outcome as a recent study demonstrated that in severe ICP (defined as bile acids greater than 40 umol/L) the risk of stillbirth was 1.5% compared to 0.5% of uncomplicated pregnancies.This risk rose further if bile acids doubled.The most recent research, published in The Lancet, suggests that around 90% of women with ICP could wait until 39 weeks of pregnancy to be induced.