Funding for this research was provided by:
Received: 28 October 2016
Accepted: 16 January 2018
First Online: 1 February 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the Institutional Review Board of the College of Health Sciences of Jimma University, Ethiopia, and the Institutional Review Boardof Tufts University, USA. Written permission was obtained from each responsible body and informed verbal consent was obtained from each study participant. We received a waiver of documentation of informed consent from the Institutional Review Boards. The letter stated that respondents do not need to sign the consent statement because many are illiterate. However, there was a place on the form for the enumerator to sign in order to indicate that participants have read the consent form and that the person had agreed to participate. Data were registered and stored anonymously, and the questionnaire was administered in a confidential way.
: The authors declare that they have no competing interests. The contents of this document are the sole responsibility of the researchers.
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