title: The authors' reply to letter to the editor re: Bagherzadeh-Khiabani et al., J Clin Epi, 2015.
authors.affiliation: Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Velenjak, Tehran 1985717413, Iran; Department of Biostatistics and Epidemiology, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Velenjak, Tehran 1985717413, Iran.
authors.forename: Farideh
authors.initials: F
authors.lastname: Bagherzadeh-Khiabani
authors.affiliation: Department of Public Health, Erasmus MC, Rotterdam, The Netherlands.
authors.forename: Ewout W
authors.initials: EW
authors.lastname: Steyerberg
authors.affiliation: Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Velenjak, P.O. Box: 19395-4763, Tehran 1985717413, Iran; Department of Biostatistics and Epidemiology, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Velenjak, Tehran 1985717413, Iran. Electronic address: dkhalili@endocrine.ac.ir.
authors.forename: Davood
authors.initials: D
authors.lastname: Khalili