Funding for this research was provided by:
Consejo Nacional de Ciencia y Tecnología (Scholarship for Doctoral Studies)
Bloomberg Philantropies (grant to the National Institute of Public Health, Mexico)
Harvard University (Lown Scholar’s program)
Received: 13 September 2019
Accepted: 28 January 2020
First Online: 3 February 2020
Ethics approval and consent to participate
: Not required. Our study is a secondary analysis of existing data from the World Health Organization (WHO) mortality database. The datasets used for this study are publicly available and anonymous.
: Not applicable.
: The authors declare that they have no competing interests.