Received: 21 February 2020
Accepted: 15 June 2020
First Online: 23 June 2020
Ethics approval and consent to participate
: This study used open-access public survey data and there is no need to obtain an ethical approval.
: This study was carried out using the 2017 CASEN socioeconomic survey and the 2017 Census data from Chile. Both are freely available.
: The authors declare that they have no competing interests.