About the Authors

Gerson M. Struik

Roles Data curation, Formal analysis, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing

g.struik@franciscus.nl

Affiliation Department of Surgery, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands

Wietske W. Vrijland

Roles Conceptualization, Investigation, Methodology, Supervision, Writing – review & editing

Affiliation Department of Surgery, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands

Erwin Birnie

Roles Formal analysis, Methodology, Writing – review & editing

Affiliations Department of Statistics and Education, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands, Division of Women and Baby, Department of Obstetrics and Gynecology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands

Taco M. A. L. Klem

Roles Conceptualization, Funding acquisition, Investigation, Methodology, Resources, Supervision, Writing – review & editing

Affiliation Department of Surgery, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands

Competing Interests

TK received research materials from Convatec, no financial funding. This does not alter our adherence to PLOS ONE policies on sharing data and materials. None of the authors served or currently serve on the editorial board of PLOS ONE. None of the authors acted as an expert witness in relevant legal proceedings. None of the authors have sat or currently sit on a committee for an organization that may benefit from publication of the paper.