Abstract

Purpose: Psychological stress is one of the main occupational hazards. The aim of this study was evaluating psychological stress in terms of role stress and its domains in professional drivers.

Methods: This cross-sectional study was conducted on 300 heavy vehicle drivers and 330 light vehicle drivers. Data were collected using interview and Osipow job stress questionnaire. T-test ،ANOVA ، chi-square test and linear regression were used in analyzing the data.

Results: 33.2% of the participants had mild to moderate stress. Independent psychological stress predictors were vehicle type, shift work, job satisfaction, and income. Stress scores were higher in work overload, role conflict, responsibility, and work environment in heavy vehicle drivers than light vehicle drivers (p<0.001), while this difference was not significant in terms of role insufficiency and ambiguity.

Conclusion: Nearly one-third of the drivers had mild to moderate stress level. Overall stress level was higher in heavy vehicle drivers than light vehicle drivers. The highest score in stress domains in all drivers attributed to the role insufficiency.

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