1. Gondar University, College of Medicine and Health Sciences, Institute of Public Health, Department of Epidemiology and Biostatistics, Gondar, Ethiopia
2. Flinders University, School of Public Health, College of Medicine and Public Health, Australia
3. Bahir Dar University, College of Medicine and Health Sciences, School of Public Health, Department of Epidemiology and Biostatistics, Bahir Dar, Ethiopia
4. Bahir Dar University, College of Medicine and Health Sciences, School of Public Health, Department of Nutrition and Dietetics, Bahir Dar, Ethiopia