Background: Since 2002 an International Company for ball-bearing rings and metal rubber gaskets opened his plant production in Bulgaria. The aim of the present survey was to analyse the health status of employees in this industry. Materials and methods: An analysis of morbidity with temporary inability to work was carried out in 2010 of 1334 employees. Source information concerning general disorders, employment accidents and occupational diseases has been collected from patients’ charts with all other causes regulated by the Bulgarian legislation being excluded. Evaluation of morbidity has been made after Batkis-Lekarev classification.
Results: 807 patients have been registered with 1672 initial patient charts. The age structure shows highest relative share for patients up to 25 years of age – 82,14% at average continuance of 6.8 days case and 14.2 days person of all cases, at highest gravity for those above 55 years of age (frequency – 56,76%, average continuance – 15,8 days case and 32,1 days person). According to the nosological structure within the International Classification of Diseases (10th Revision), most frequently patient charts have been issued because of Diseases of the respiratory system – 34.05%, followed by Diseases of the musculoskeletal system and connective tissue – 15.43%, Certain infectious and parasitic diseases – 9.45%, Injuries – 9.39%, etc. The highest gravity is observed in Diseases of the musculoskeletal system and connective tissue -22.92%. Conclusion: Very high morbidity has been detected in respect to the following indicators: Frequency of morbidity cases per 100 employees and Frequency of day losses per 100 employees in accordance with Batkis- Lekarev classification.Full text sources