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Article History

Accepted: 3 May 2021

First Online: 25 May 2021

Declarations

:

: This research was not supported by any specific grant.

: Authors declare no conflict of interests /competing interests.

: Ethical approval was not sought for the present study, because it was based on the reuse of anonymous administrative data and conducted for institutional purposes, in agreement with the Italian health facilities (regions and local health units).

: Consent to participate was not sought for the present study.

: Not applicable.

: The datasets generated and analysed during the current study are not publicly available, because they come from anonymized administrative databases in property of Italian Regional and Local Health Facilities, which were analysed by Fondazione ReS under specific agreements.

: Oracle SQL Developer version 18.3.0 and later is the software used in order to conduct all the analyses.

: Each author has approved the submitted version and has agreed both to be personally accountable for the author's own contributions and to ensure that questions related to the accuracy or integrity of any part of the work.