Medical Journal of The Islamic Republic of Iran (MJIRI)

Background: Organic solvents are known as a group of organic compounds, widely used in industry and to which many workers are exposed. Neurotoxicity is one of the most important complications of the chronic exposure to the solvents and may causes neurobehavioral disorders in workers. We have studied the frequency of neurobehavioral disorders in workers exposed to organic solvents in one of the publishing houses in Tehran.

Methods: In this cross-sectional study, 510 workers of a publishing house, having been employed at least a year before the research, were selected to be studied. Among them, 345 workers had been exposed to organic solvents and the other (165 workers) had not. Data were collected using a questionnaire. This questionnaire included demographic and occupational information, and the Swedish Q16 questionnaire. Variables included age, duration of employment, working shift, and smoking. Then we compared both groups in terms of neurobehavioral disorders, using statistical methods.

Results: The mean score of the Swedish Q16 questionnaire in the exposed group (4.8±4.4) was significantly higher than the non-exposed group (3.2±3.1) (p=0.001). According to the questionnaire score, the frequency of neurobehavioral disorders in the exposed group was 38% and in the non-exposed group was 22% (p=0.001). We estimated that the frequency of neurobehavioral disorders in the exposed group was significantly higher than the non-exposed group (p<0.05) using regression analysis and removal of the confounding factors.

Conclusion: This study shows that the frequency of the neurobehavioral disorders in the exposed group is significantly higher than the non-exposed group.

 Background: Severe upper extremity injuries can affect the quality of life in patients and cause multi-factorial and long-term costs of disease. The aim of this study was to assess quality of life in patients with upper extremity injuries caused by work-related accidents.

 Methods: In this study cross-sectional method was used in patients referred to the Occupational medicine Clinic of Rasoul Akram Hospital to determine their impairments. Patient's information including demographic variables, calculation of the impairment rate based on AMA Guide book (in terms of WPI), returning to work, and location of injury, work experience and type of injury. Then the quality of their life was assessed and interpreted using SF36 questionnaire.

 Results: 203 patients were evaluated. Different aspects of the patients’ life were not associated with age, gender and education of patients based on The SF-36 questionnaire. There was an inverse relationship between the percentage of patients’ impairment and different aspects of life quality there were also a significance correlation between impairment rate and physical performance of patients (p<0.001, r= -0.26), social performance of patients (p= 0.001, r= -0.24), pain (p= 0.005, r= -0.2), emotional health of patients (p= 0.006, r= -0.29), energy / fatigue in patients (p<0.001, r= -0.29) and the patient's general health (p<0.001, r= -0.27).

 Conclusion: This study shows that upper extremity impairment due to occupational injuries has an inverse and significant association with various aspects of quality of life.