Vida Zaroushani1,2, Farahnaz Khajehnasiri3. 1. Social Determinants of Health Research Center, Research Institute for Prevention of Non-Communicable Disease, Qazvin University of Medical Sciences, Qazvin, Iran.v.zaroushani@qums.ac.ir. 2. Department of Occupational Health Engineering, Faculty of Health, Qazvin University of Medical Sciences, Qazvin, Iran. 3. Department of community medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.