Received: 13 February 2021
Accepted: 5 April 2022
First Online: 25 April 2022
: Approval was obtained from two ethics committee: the Université de Montréal health research ethics board (“Comité d’éthique de la recherche en sciences et en santé-CERSES”) (# 15–004-CERES-D) and the belgian Commission for the Protection of Privacy (“Autorité de protection des données”) (# STAT 04–2014). Participant consent was not necessary as this study involved the use of a de-identified database. The requirement of the informed consent was waived by the two ethics committee: “Comité d’éthique de la recherche en sciences et en santé” and “Autorité de protection des données”). All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.