Introduction: Unsafe behaviours are one of the important factors in occurrence of occupational accidents that can have a negative effect on the safety attitude. Individuals with type a behavioural pattern, with personality traits, such as being hasty, competitiveness, hostility, and aggression, can be effective in the incident of occupational accidents in the workplace. This study aimed to investigate the relationship between occupational accidents and behaviour patterns among workers.
Methods: This descriptive-analytic study was conducted among 60 workers engaged in one of the motorcycle assembly lines in Tehran in 2017. Friedman and Rosenman behavioural patterns questionnaire was used to determine the behaviour pattern. Moreover, the incident of accidents and pseudo- accidents recorded in the Health and Safety Department were investigated. Data analysis was performed using SPSS22.
Results: A significant relationship was found between type A and B behaviour pattern with incident of accidents and pseudo- accidents. The chance of incident of accidents and pseudo- accidents among workers with type a behavioural pattern were 4.85 and 4.65 times more than that of type B behaviour pattern, respectively. There was a significant and positive statistical correlation between the behaviour pattern score and the frequency of accidents and pseudo- accidents.
Conclusions: Workers with type a behavioural pattern are more likely to be injured due to their dangerous behaviours. Therefore, one of the solutions to improve safety hazardous behaviours and preventing accidents and pseudo- accidents in workplaces is to select individuals with lower risk behaviors, especially for high-risk activities.

Keywords: Assembly Workers, Behavioural Pattern, Occupational Accidents

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