Text and Data Mining valid from 2020-03-18
Received: 17 January 2019
Accepted: 24 February 2020
First Online: 18 March 2020
Ethics approval and consent to participate
: Ethical approval was not required for this study as it is open access data. We requested the data from the DHS program prior to its utilisation.
: Not applicable.
: The authors declare that they have no competing interests.