Article History
Received: 11 February 2019
Accepted: 5 July 2019
First Online: 11 July 2019
Ethics approval and consent to participate
: Since the data was obtained from Ethiopian Central Statistical Agency, the ethical clearance for the survey was approved by Ethical Review Board of Ethiopia Central Statistical Agency (CSA) and all participants who agreed to take part in the survey signed a consent form.
: Not applicable.
: The authors declared that they have no competing interest.