Funding for this research was provided by:
World Health Organization (A65869)
Text and Data Mining valid from 2019-12-01
Received: 30 June 2018
Accepted: 16 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the World Health Organization and the National Health Research Ethics Committee (NHREC) of Nigeria – number NHREC/01/01/2007–16/07/2014, renewed in 2015 with NHREC 01/01/20047–12/12/2015b. Obtaining consent from the individual patients was not feasible given the retrospective nature of the study and the difficulty in contacting 4416 patients whose case files were used for this study. The Chief Medical Directors and Heads of Departments of the hospitals were informed of the purpose of the study, and consents were obtained from them to conduct the study. They were assured of the confidentiality of information obtained. Only the hospitals that agreed to participate in the fully explained study were enlisted into the study. No names or specific contact information were obtained from the study participants.
: Not applicable.
: The authors declare that they have no competing interests.