[Mortality due to malignant tumors in children and adolescents in Belgrade 1980-1993].

In the period 1980-1993, in Belgrade, malignant tumors of the age group up to 24 years were 1.2% of the mortality structure of all cancers. The average standardized mortality rate (world standard population) of all cancers was 7.0 per 100,000 with a decreasing trend. In childhood and adolescence period, hematological malignancies (42.0%), brain tumors (23.0%) and soft tissue and bone tumors (10.5%) were the most frequent cancers for the observed period. The average standardized mortality rates for leukemia was 1.1/100,000, for non-Hodgkin's lymphomas 0.2/100,000 and -1.7/100,000 for Hodgkin's disease. The elevated mortality rates were registered for leukemia and non-Hodgkin's lymphomas, whereas a marked decreasing trend was present for Hodgkin's disease. For brain malignant tumors and soft tissue and bone tumors, a decreasing mortality rates were also observed.