1. School of Nursing and Midwifery, Trinity College Dublin The University of Dublin Dublin Ireland
2. School of Nursing and Midwifery, Trinity Centre for Maternity Care Research (TCMCR) Trinity College Dublin Dublin Ireland
3. School of Nursing and Midwifery University of Newcastle Callaghan New South Wales Australia
4. ESTER Team—Epidemiology in Occupational Health and Ergonomics, Department of Medicine, Research Institute for Environmental and Occupational Health (IRSET—Inserm UMR 1085) University of Angers Angers France
5. Study Participant, c/o Susan Hannon, School of Nursing and Midwifery Trinity College Dublin Dublin Ireland