Volume 7, Issue 1 (Iranian Journal of Ergonomics 2019)                   Iran J Ergon 2019, 7(1): 45-53 | Back to browse issues page


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Alimohammad I, Pourbabaki R, Rahmani K, Souri M, Ahmadi Kanrash F. The Effect of Smoking on Cognitive Performance of Workers in the Automotive Industry. Iran J Ergon. 2019; 7 (1) :45-53
URL: http://journal.iehfs.ir/article-1-589-en.html
MSc Student, Department of Occupational Health Engineering, Faculty of Health, Tehran University of Medical Sciences, Tehran, Iran , f_ahmadi1367@yahoo.com
Abstract:   (1141 Views)

Background and Objectives: Studies have shown the effect of smoking on mental and cognitive performance of the individuals who need to concentrate on their work. The present study aimed to investigate the effect of smoking on cognitive performance of the automotive industry workers. 
Methods: In this case-control study conducted in 2018, 280 automotive industry workers were selected through the simple random sampling and then assigned to  two groups of smokers (100 cases) and non-smokers (180 controls). All the subjects were selected from the environments with the sound levels of 82 to 88 dB. The workers’ cognitive performance was also tested using the CPT, Stroop and Tower of London tests.
Results: The mean age of the case group was 36/02 (3/7) and that of the control group was 36/25 (3/65) years. The results showed that the scores of the TOL test in the case group (smokers) were lower than those of the non-smokers (OR=0/903, P<0.01), and other items of the TOL test had no significant relationship with the individuals’ smoking status (P>0/05). The Stroop and continuous performance tests also had a significant relationship with the individuals’ smoking status in terms of the number of correct responses and the response time as well as interference (P<0.01). Other items had no relationship with the individuals’ smoking status (P>0/05).
Conclusion: The results of this study showed that the use of cigarettes and nicotine substances significantly decreased the workers’ mental and intellectual performance, and smokers were more likely to suffer from concentration interference, low brain processing speed in decision-making, and low precision at work, compared to non-smokers.

 

Full-Text [PDF 378 kb]   (433 Downloads)    
Type of Study: Research | Subject: Special
Received: 2018/12/6 | Accepted: 2019/05/1 | ePublished: 2019/08/14

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