Received: 11 November 2020
Accepted: 26 March 2021
First Online: 14 April 2021
: All methods were carried out in accordance with relevant guidelines and regulations from study design to the analysis. Ethical clearance was obtained from Debre Markos university college of Health science Ethical Review committee, and permission was obtained from the administration and medical director of the selected Hospitals. Since we used retrospective data, the research ethics review committee of Health sciences college, Debre Markos University, waived the need for informed consent. To keep the confidentiality of maternal information data were collected based on their registration number and codes used instead of names.
: Not applicable.
: The authors declare that they have no competing interests.