DECLARATION
Author contributions
All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Thomas Winsum Anabah, Sylvanus Kampo, Aglais Arredondo Falagán. The first draft of the manuscript was written by Thomas Winsum Anabah and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
Funding
No funding was obtained for this study
Acknowledgements
We thank the Chief Executive Officer (CEO) of the Tamale Teaching Hospital for the support he gave us during this study. We also wish to thank all the staff of the department of obstetrics and Gynecology for making available all the necessary materials needed for this study.
Ethics approval
The research committee of the Tamale Teaching Hospital approved the study protocol on May 17, 2016 for the data collection.
Availability of data and materials
The datasets generated and/or analyzed during the current study are not publicly available due to patient confidentiality but are available from the corresponding author on reasonable request.