Fear of childbirth and risk of cesarean section: a cohort study in six European countries

* The Bidens study group: Berit Schei (principal investigator), Department of Public Health and General Practice/Department of Obstetrics and Gynecology, NTNU/St. Olav’s University Hospital, Trondheim, Norway; Elsa Lena Ryding (co-principal investigator), Karolinska Institutet, Stockholm, Sweden; Mirjam Lukasse (coordinator), NTNU/Department of Health, Nutrition and Management, Oslo and Akershus University College of Applied Sciences, Norway. Local principal investigators: Marleen Temmerman University of Ghent, Belgium; Thora Steingrímsdóttir (Landspitali University Hospital, Iceland); Ann Tabor (Copenhagen University Hospital, Rigshospitalet, Denmark); Helle Karro (University of Tartu, Estonia). Local coordinators: An-Sofie Van Parys (University of Ghent, Belgium); Hildur Kristjánsdóttir (University of Iceland/Landspitali University Hospital, Iceland); Anne-Mette Schroll (Copenhagen University Hospital, Rigshospitalet, Denmark); Made Laanpere (University of Tartu, Estonia); Anne-Marie Wangel (Malmö University, Sweden)