1. Department of Biostatistics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
2. Department of Statistics, Faculty of Basic Sciences, Bu-Ali Sina University, Hamadan, Iran
3. Modeling of Noncommunicable Diseases Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
4. Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran