About the Authors

Marit S. G. van der Pijl

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Writing – original draft

m.vanderpijl@amsterdamumc.nl

Affiliation Department of Midwifery Science, AVAG, Amsterdam Public Health research institute, Amsterdam UMC, VU medical centre, Amsterdam, The Netherlands

Martine H. Hollander

Roles Conceptualization, Formal analysis, Methodology, Supervision, Writing – original draft

Affiliation Department of Obstetrics, Amalia Children’s Hospital, Radboud University Medical Center, Nijmegen, The Netherlands

Tineke van der Linden

Roles Conceptualization, Data curation, Investigation, Methodology, Writing – original draft

Affiliations Stichting Geboortebeweging (Birth Movement NL), Ede, The Netherlands, GGzE, Eindhoven, The Netherlands, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

Rachel Verweij

Roles Conceptualization, Data curation, Investigation, Methodology, Writing – original draft

Affiliations Stichting Geboortebeweging (Birth Movement NL), Ede, The Netherlands, Hechte Band, Boxtel, The Netherlands

Lianne Holten

Roles Conceptualization, Investigation, Methodology, Supervision, Writing – original draft

Affiliation Department of Midwifery Science, AVAG, Amsterdam Public Health research institute, Amsterdam UMC, VU medical centre, Amsterdam, The Netherlands

Elselijn Kingma

Roles Conceptualization, Methodology, Validation, Writing – original draft

Affiliations Department of Philosophy, University of Southampton, Southampton, United Kingdom, Department of Industrial Engineering & Innovation Sciences, Philosophy & Ethics, Technical University Eindhoven, Eindhoven, The Netherlands

Ank de Jonge

Roles Conceptualization, Methodology, Supervision, Writing – original draft

Affiliation Department of Midwifery Science, AVAG, Amsterdam Public Health research institute, Amsterdam UMC, VU medical centre, Amsterdam, The Netherlands

Corine J. M. Verhoeven

Roles Conceptualization, Investigation, Methodology, Project administration, Supervision, Writing – original draft

Affiliations Department of Midwifery Science, AVAG, Amsterdam Public Health research institute, Amsterdam UMC, VU medical centre, Amsterdam, The Netherlands, Department of Obstetrics and Gynaecology, Maxima Medical Centre, Veldhoven, The Netherlands, Division of Midwifery, School of Health Sciences, University of Nottingham, Nottingham, United Kingdom

Competing Interests

We declare that the organizations Hechte Band and Geboortebeweging did not provide funding to carry out this study. Two authors (TL and RV) affiliated with these organizations were part of the research team representing the client. TL is a member of Geboortebeweging, a clinical psychologist and a PhD student (GGzE & Vrije Universiteit). RV is also a member of Geboortebeweging and is a certified babywearing consultant and bonding coach (Hechte Band). Both authors were involved in managing the #GG campaign in 2016, in which they also participated themselves. TL and RV were involved in the research process from the start. They provided feedback on the research proposal and design of the study and contributed to discussing the findings within the research team and writing the paper, all from a client point of view. They were not involved in data collection or analysing the data. This does not alter our adherence to PLOS ONE policies on sharing data and materials. There are no patents, products in development or marketed products to declare.