Received: 20 October 2020
Accepted: 14 January 2021
First Online: 28 January 2021
Ethics approval and consent to participate
: The study was performed in accordance with the Declaration of Helsinki and approved by the AHRI/ALERT Ethics Review Committee (Ref. No. PO18/12), Addis Ababa University, College of Health Sciences, Ethics Review Committee (Ref. No. DRERC/005/09) and the National Research Ethics Review Committee (Ref. No. 3.10/811/05). Written informed and parental consent was sought for all participants and those aged below 18 years, respectively. Additionally child assent was sought for those aged between 15 and 17 years as per the Ethiopian IRB guidelines.
: Not applicable.
: All authors declare no potential conflicts of interest. STH is currently a full time employee of Novo Nordisk a/s.