Departments of Nutrition, Faculty of Public Health (Dr Amirkhizi) and Epidemiology and Biostatistics, Faculty of Public Health (Dr Hamedi-Shahraki) and Student Research Committee, Faculty of Public Health (Ms Dibaseresht), Zabol University of Medical Sciences, Zabol, Iran.

Correspondence: Soudabeh Hamedi-Shahraki, PhD, Department of Epidemiology and Biostatistics, Faculty of Public Health, Zabol University of Medical Sciences, ShahidRajaei St, Zabol, Iran ([email protected]).

The authors thank all the research vice chancellor personnel in Zabol University of Medical Sciences and all subjects who participated in this study.

This work was supported by the research vice chancellor of Zabol University of Medical Sciences.

The authors declare that they have no conflicts of interest.