en Occupational Health Original Article <div style="text-align: justify;"><span style="font-family:times new roman;"><strong>Background:</strong> Cognitive failure is mental lapses in perception, attention, memory, and action. It occurs during routine tasks that one would usually have no difficulty in successfully completing. Cognitive performance is influenced by conditions and some individual and job characteristics and the identification of factors that affect human performance is essential to prevent human error. The purpose of this study was to evaluate cognitive failures and identify individual and job related factors in industry employees.<br> <strong>Materials and Methods:</strong> <a name="OLE_LINK8">This cross-sectional study was conducted in 173 employees of an industry in Qom Province in Central Iran in 2016. The demographic information were collected via interviews and related questionnaires. Moreover, cognitive failures were assessed using the Cognitive Failures Questionnaire (CFQ). Data analysis was performed using factor analysis, t-test, Pearson correlation, and multiple linear regressions.</a><br> <a name="OLE_LINK75"><strong>Results:</strong></a> Factor analysis showed that cognitive failures have three domains (memory, attention, and action). Cronbach&#39;s alpha coefficient for the whole questionnaire was 0.89. The mean &plusmn; SD score of cognitive failures in the study group was 1.07 &plusmn; 0.55. The statistical analysis of the data revealed that there was a significant correlation between smoking, chronic disease, and work experience and cognitive failures (P < 0.05).<br> <strong>Conclusions:</strong> Cognitive failures have a multi-dimensional structure and these dimensions have an integral relationship. It seems that chronic disease, smoking, and work experience cause an increase in the risk of cognitive failures, but this issue requires further and more comprehensive studies.</span></div> Cognitive,Industry,Employees,Individual,Job, 157 164 http://johe.rums.ac.ir/browse.php?a_code=A-10-221-1&slc_lang=en&sid=1 M Mahdinia mahdinia@yahoo.com 22400319475328460010384 22400319475328460010384 Yes Dept. of Occupational Health, Faculty of Health, Qom University of Medical Sciences, Qom, Iran. Qom University of Medical Sciences M Mirzaei Aliabadi hse.laboratory@yahoo.com 22400319475328460010385 22400319475328460010385 No Center of Excellence for Occupational Health Engineering, Research Center for Health Sciences, Faculty of Health, Hamadan University of Medical Sciences, Hamadan, Iran. Hamadan University of Medical Sciences E Darvishi hse.laboratory@yahoo.com 22400319475328460010386 22400319475328460010386 No Environmental Health Research Center, Kurdistan University of Medical Science, Sanandaj, Iran. Kurdistan University of Medical Science A Mohammadbeigi hse.laboratory@yahoo.com 22400319475328460010387 22400319475328460010387 No Faculty of Health, Qom University of Medical Sciences, Qom, Iran. Qom University of Medical Sciences A Sadeghi hse.laboratory@yahoo.com 22400319475328460010388 22400319475328460010388 No Faculty of Health, Safety and Environment, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Shahid Beheshti University of Medical Sciences H Fallah hse.laboratory@yahoo.com 22400319475328460010389 22400319475328460010389 No Dept. of Occupational Health, Faculty of Health, Yazd University of Medical Sciences, Yazd, Iran Yazd University of Medical Sciences