Received: 13 November 2020
Accepted: 25 January 2021
First Online: 6 February 2021
Ethics approval and consent to participate
: The French Society of Intensive Care ethics committee approved the study (CE SRLF 19–25). Written informed consent was not required, in compliance with French law on retrospective studies of anonymized data. All local medico-administrative data bases are declared to the Commission Nationale Informatique et Liberté (CNIL).
: Not applicable.