About the Authors

Mesay Hailu

Affiliations Sidam Zone Health Office, Hwassa, Ethiopia, Population and Family Health Department, College of Public Health and Medical Science, Jimma, Ethiopia

Abebe Gebremariam

Affiliation Population and Family Health Department, College of Public Health and Medical Science, Jimma, Ethiopia

Fissehaye Alemseged

Affiliation Department of Epidemiology and Biostatistics, College of Public Health and Medical Science, Jimma University, Jimma, Ethiopia

Kebede Deribe

kebededeka@yahoo.com

Affiliation College of Public Health and Medical Science, Jimma University, Jimma, Ethiopia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MH KD. Performed the experiments: MH AG FA. Analyzed the data: MH AG FA KD. Contributed reagents/materials/analysis tools: MH AG FA. Wrote the paper: MH AG FA KD.