Neuropsychiatric problems among bus drivers and their relation to exposure to vehicle exhaust

ABSTRACT

Bus driving is considered a hazardous occupation due to work stress. Morbidity and mortality due to cardiovascular. gastro-intestinal and musculoskeletal disorders among bus drivers were investigated in many studies. In this study neuropsychiatric problems were investigated. Ninety bus drivers from East Delta Company [Mansoura branch] and a matched control group were studied. There was a significant higher prevalence of tingling, numbness and motor. sensory and mixed neuropathy among bus drivers than in controls. Scores of MHQ were significantly higher. Also, there was a decrease in performance of the Neurobehavioural Core Test Battery [NCTB] among bus derivers. Bus derivers had a lower mean value of Hb and oxy Hb, while reduced Hb, carboxy Hb. and blood lead level were significantly higher. The neuropsychiatric problems, MHQ scores and NCTB performance were significantly worse in drivers of badly maintained cars. MHQ scores and psychiatric performance correlated with the duration of work and blood lead levels and Hb derivatives. Causes, association and prevention were discussed