Hailesilassie, Natnael Yikeber
Geneti, Soressa Abebe
Agonafir, Balkew
Article History
Received: 12 July 2024
Accepted: 14 August 2025
First Online: 28 October 2025
Declarations
:
: Ethical approval was received from Research Ethics Review Committee of the Anatomy Department, School of Medicine, College of Health Sciences, Addis Ababa University with reference number of DRERC/011/23, dated on March 16, 2023. Debrebrehan hospital research board reviewed the proposal. The hospital's surgical department and card room received a formal letter of support and ethical clearance from the hospital's research ethics review board. After obtaining hospital consent, the study ensured confidentiality at all stages, and only the medical records of the study participants were utilized without stating their names. The ethical committees waived the requirement for individual informed consent because this was a retrospective cross-sectional study that used anonymized data taken from hospital health management information systems (HMIS). The information gathered was kept in a secure location. There was no direct benefit or harm from participation in the study.
: Not applicable.
: The authors declare no competing interests.