Increasing Use of Antenatal Magnesium Sulphate Prior to Preterm Birth for Preventing Cerebral Palsy in Australia and New Zealand, 2012-2020: A Binational Registry Study.

We assessed the use of magnesium sulphate prior to preterm birth for preventing cerebral palsy in an Australian and New Zealand registry study. Use increased markedly from 32.3% (2012) to 78.8% (2020) (p < 0.001). Binational approaches to sustain and explore the feasibility of further increasing use, informed by evolving evidence and guidelines, are needed.