Ravelli, Anita C. J. http://orcid.org/0000-0002-3447-8286
Eskes, Martine http://orcid.org/0000-0002-7181-8665
van der Post, Joris A. M. http://orcid.org/0000-0003-3311-2116
Abu-Hanna, Ameen http://orcid.org/0000-0003-4324-7954
de Groot, Christianne J. M. http://orcid.org/0000-0003-3277-2542
Article History
Received: 25 June 2019
Accepted: 17 May 2020
First Online: 26 May 2020
Ethics approval and consent to participate
: No ethnical approval was needed according to the Dutch central committee of Human Research (involving Human Subjects) Act, as the study used only previously collected data / retrospective cohort study. (“Wet Medisch-Wetenschappelijk Onderzoek met Mensen, 1998 §1 Article 1”). For this paper only pseudo anonymised data were processed.The science/ethical committee of the Netherland Perinatal Registry (PERINED) provided permission for data analysis trend in perinatal mortality and the intermediate risks groups (16.13).
: Not applicable.
: The authors AR, ME, JAMP, AAH, and CJMdG declare that they have no conflict of interest.