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Article History

Received: 9 March 2020

Accepted: 28 January 2021

First Online: 9 February 2021

Ethics approval and consent to participate

: The approval of an institutional review board/ethics review committee was not required for the present study, being a record-based study that was part of the activities included in the National Statistical Programme approved by the Italian Presidency of the Council of Ministers. The selected families received a letter from Istat explaining the purpose of the survey and how it would be conducted. Participants were also reassured about confidentiality and protection of personal data. Except for some sensitive information specified in the informative letter, the response to the survey was mandatory by law and formal consent to participate was therefore not required.

: Not Applicable.

: The authors do not have any financial or other relationships that might lead to a conflict of interest.