[Individual-based study of morbidity with temporary loss of work capacity in 1 plant over a 3-year period].

The study of morbidity rate with temporary disability according to subjects, based on the Soviet experience has an approximately thirty year history in our country. Even though, numerous scientific, methodical and organizational problems with a view to the application of the method-according-to-subjects are still unsolved. The object of our study is a plant of the Union of the Blind in Bulgaria, producing cork stoppers, electrical materials and haircloth. The information derived from the patients' chart by an individual index-card, allowed a more detailed and more comprehensive analysis of the indices of the morbidity rate with temporary disability according to subjects, cases and the days lost because of temporary disability, depending on age-sex structure, occupational group, workshop, length of service and place of residence. The results obtained were compared with those supplied by the official statistics of the TIITs-Gabrovo. The groups of often and continuous sick subjects (6.96%) and (8.56%) have been established for 1983, covering about 40% of the cases with temporary disability and over 60% from the labour losses for that year. Well grounded hygienic and medical-prophylactic measures are recommended on the base of the conclusions drawn.