1. Department of Statistics, College of Natural and Computational Science, Samara University, Samara, Ethiopia
2. Department of Public Health, College of Medicine and Health Sciences, Samara University, Samara, Ethiopia
3. School of Public Health, College of Health Sciences and Medicine, Dilla University, Dilla, Ethiopia
4. Department of Epidemiology and Biostatistics, College of Health Sciences and Medicine, Wolaita Sodo University, Sodo, Ethiopia
5. Department of Ophthalmology, School of Medicine and Health Science, Debre Tabor University, Debre Tabor, Ethiopia
6. School of Medicine, College of Health Science and Medicine, Wolaita Sodo University, Sodo, Ethiopia
7. Department of Nursing, College of Medicine and Health Sciences, Samara University, Samara, Ethiopia
8. Department of General Midwifery, School of Midwifery, College of Medicine & Health Sciences, University of Gondar, Gondar, Ethiopia