Tehran University of Medical Sciences Journal of Biostatistics and Epidemiology 2383-4196 1 1/2 2015 10 19 22 29 EN Neda Bayat Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Kazem Mohammad Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Reza Majdzadeh Department of Epidemiology and Biostatistics AND Knowledge Utilization Research Centre (KURC), School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Arash Etemadi Digestive Disease Research Center, Tehran University of Medical Sciences, Tehran, Iran Saharnaz Nedjat Department of Epidemiology and Biostatistics AND Knowledge Utilization Research Centre (KURC), School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2015 10 13 2015 10 13 Background & Aim: Due to lack of a unique and acceptable classification scheme for occupation in Iran, the role of this measure has been ignored in many health researches. We aimed to find a suitable classification . Methods  & Materials:  In-depth  interviews  with  expert  health  professionals  were done through purposeful sampling.  They  expressed  their  opinions  on five commonly  used  occupational  based socio-economic measures  in  the  world  to  develop  a  consensus  draft  for  Iranian  occupational classification. The main themes were identified by content analysis. Results: The experts agreed that the National Statistics Socio-economic Classification was the most compatible job  classification  for  Iran’s health  researches.  Some  of  the  problems  in  occupation assessment in health research were also clarified through interviews. Conclusion: Job classification would better consist of more than one job dimension; the economic parameters are not stable and accurately measurable, so more social aspects of occupation such as the authority and control over workforce should be considered. https://jbe.tums.ac.ir/index.php/jbe/article/view/12 https://jbe.tums.ac.ir/index.php/jbe/article/download/12/20