kamal mirkarimi department of health education and promotion, faculty of health, isfahan university of medical sciences, isfahan, ir iran firoozeh mostafavi department of health education and promotion, faculty of health, isfahan university of medical sciences, isfahan, ir iran; department of health education and promotion, faculty of health, isfahan university of medical sciences, isfahan, ir iran. tel: +98-9132118364, fax: +98-1732421657 samira eshghinia metabolic disorders research center, golestan university of medical sciences, gorgan, ir iran mohammad ali vakili department of health and medical sciences, golestan university of medical sciences, gorgan, ir iran rahman berdi ozouni-davaji health management and social development research center, golestan university of medical sciences, gorgan, ir iran mohammad aryaie deputyship of research, golestan university of medical sciences, gorgan, ir iran