1. Department of Community Health Nursing, School of Nursing, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
2. Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
3. Department of Human Nutrition, College of Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
4. Department of Public Health, College of Medicine and Health Sciences, Debre Berhan University, Debre Berhan, Ethiopia
5. Department of Epidemiology and Biostatistics, Flinders University, Health Sciences Building, Sturt Road, Bedford Park, Adelaide, SA 5001, Australia
6. Departent of Reproductive and Child Health, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia