بررسي بروز سالانه حوادث شغلي در يكي از كارخانجات بزرگ معدن مس كشور (1384-1383): معرفي روشي براي ارزيابي شدت حوادث شغلي

One - Year Incidence Rates of Job-Related Accidents in one of the Biggest Iranian Copper Factories (2004-2005): A New Method to Assess JobRelated Accidents Severity

Background and Objectives: In order to measure the economic cost of accidents as well as their effect on human health, information "bout incidence trend, the risk of accidents and the severity of resulting injuries is needed. This study aims to assess one-year incidence rate of job-related accidentsʹ among workers of Sarcheshrneh Copper Factories Complex, Kerman, Iran. Furthermore, a new method for measuring job-related accidents severity is also introduced. Malerial and Methods: In this longitudinal study all workers in Sarchesluneh Copper Factories Complex were followed for two years. Demographic characteristics as well as specific Information such as the number of lost days were collected using a checklist. Injured people Or their co- workers were interviewed in face to face sessions. Data were analyzed in SPSS and parametric (t-test, ANOVA) or non-parametric (Xʹ) tests were used where appropriate. Relative risk (RR) was calculated to compare incidence rates. The new method for measuring the severity ofjob-related accidents is also presented. Results: Mean age of injuircd people "as 37 Ale7.3 years (n- 170). One-year incidence rate of accidents (in 1000 person-year at risk) ill 2004 and 2005 was 21.52 and 14.41 respectively. Carelessness was the most common cause of accidents. Mean lost days for injured workers WJS 29.8±29.7. Conclusion: Reduction of the risk of accidents in the second year shows the success of educational and protection programs. However, more attempts should be made to reduce this risk. The method for calculation of the severity ofjob-related accidents in this research is more accurate than the method thai is being used,