1. Centre for Epidemiology and Statistics Sorbonne Paris Cité Obstetric Perinatal and Paediatric Epidemiology Research Team Paris University EPOPé Paris France
2. Department of Anaesthesia and Intensive Care Saint‐Antoine Hospital DMU DREAM Sorbonne University Paris France
3. Department of Obstetrics and Gynaecology Côte de Nacre Hospital Caen University Caen France
4. Department of Obstetrics and Gynaecology Armand Trousseau Hospital DMU ORIGYN Sorbonne University, AP‐HP Paris France
5. Department of Anaesthesia and Intensive Care Armand Trousseau Hospital DMU ORIGYN Sorbonne University, AP‐HP Paris France