About the Authors

Shabana Sayed

Contributed equally to this work with: Shabana Sayed, Bjørn Molt Petersen, Ritsa Storeng

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

shabana@klinikkhausken.no

Affiliation Klinikk Hausken, IVF and Gynaecology, Haugesund, Norway,

Bjørn Molt Petersen

Contributed equally to this work with: Shabana Sayed, Bjørn Molt Petersen, Ritsa Storeng

Roles Conceptualization, Data curation, Formal analysis, Methodology, Writing – review & editing

Affiliation BMP Analytics, Consultancy, Viby J, Denmark,

Marte Myhre Reigstad

Roles Conceptualization, Writing – review & editing

‡ MMR, AS and JWH also contributed equally to this work.

Affiliation Norwegian National Advisory Unit on Women’s Health, Oslo University Hospital, Oslo, Norway

Arne Schwennicke

Roles Conceptualization, Writing – review & editing

‡ MMR, AS and JWH also contributed equally to this work.

Affiliation Klinikk Hausken, IVF and Gynaecology, Haugesund, Norway,

Jon Wegner Hausken

Roles Conceptualization, Writing – review & editing

‡ MMR, AS and JWH also contributed equally to this work.

Affiliation Klinikk Hausken, IVF and Gynaecology, Haugesund, Norway,

Ritsa Storeng

Contributed equally to this work with: Shabana Sayed, Bjørn Molt Petersen, Ritsa Storeng

Roles Conceptualization, Project administration, Supervision, Writing – review & editing

Affiliation Norwegian National Advisory Unit on Women’s Health, Oslo University Hospital, Oslo, Norway

Competing Interests

Co-author B.M. Petersen is the owner of BMP Analytics, an independent consultancy company. He has no conflicting interests regarding the research presented in this manuscript. BMP has acted as freelance consultant for Vitrolife, as well as other enterprises within IVF and applied science in general. This does not alter our adherence to all PLOS ONE policies on sharing data and materials. All other authors have no conflicts of interest to disclose.