Fariba Kiani - Organization
Zahra Zadehgholam - Organization
Mohammad Reza Khodabakhsh - Young Researchers and Elite Club, Mashhad Branch, Islamic Azad University, Mashhad, Iran.

Objective: An important factor in the prevention of industrial accidents is the employees’ ability to maintain their awareness of the work situation, understand the information it holds, and predict the development of the situations. In this study, we examined the role of work stress and sleepiness in predicting work situation awareness among workers.  Methods: The present study was a cross-sectional study, conducted in ۲۰۱۴. The sample consisted of ۱۸۰ employees in the National Petrochemical Company. They were selected according to the stratified random sampling method and responded to questionnaires about demographic characteristics, work situation awareness of Sneddon, Mearns, and Flin (۲۰۱۳), work stress of Cohen et al. (۱۹۸۳), and Epworth sleepiness scale. The data were analyzed by correlation coefficient and stepwise regression by using the SPSS ۱۵.  Results: The results showed that there were internal correlation among work stress, sleepiness, and work situation awareness. Also, the results of stepwise regression analysis revealed that work stress and sleepiness significantly predicted, respectively, almost ۲۳% and ۲۶% of variances of work situation awareness among workers.  Conclusion: According to the findings of the present study, work stress and sleepiness can predict work situation awareness. Therefore, considering these variables can be important in promoting the awareness of work situation among workers.

Work stress, Sleepiness, Work situation awareness, Workers