1. Centre for Big Data Research in Health UNSW Sydney New South Wales Australia
2. National Perinatal and Statistics Unit School of Clinical Medicine & Centre for Big Data Research in Health, UNSW Sydney New South Wales Australia
3. Melbourne School of Population and Global Health University of Melbourne Melbourne Victoria Australia
4. Woolcock Institute of Medical Research Sydney New South Wales Australia
5. South West Sydney Clinical School University of New South Wales Sydney New South Wales Australia
6. Priority Research Centre for Health Lungs, School of Medicine and Public Health University of Newcastle, and Hunter Medical Research Institute Newcastle New South Wales Australia
7. College of Health Medicine and Wellbeing, School of Nursing and Midwifery University of Newcastle Newcastle New South Wales Australia