Abacavir (ABC) and Zidovudine (AZT) based regimens are the preferred first line nucleoside reverse transcriptase (NRTIs) backbones being widely utilized for managing HIV infection in children. However, there is a dearth of data regarding the clinical outcomes and associated risk factors in Ethiopia. | Abacavir versus Zidovudine-based regimens for treatment of HIV-infected children in resource limited settings: A retrospective cohort study