INCIDENCE OF LEUKEMIAS AND NON-HODGKIN LY MPHOMAS AMONG CHILDREN LIVING IN DIFFERENT REGIONS OF BRYANSK TERRITORY

Annual incidence of acute leukemia (AL) and non-Hodgkin lymphoma (NHL) per 100 000 residents aged 0-15 years has been compared for 6 South-W est regions (supervision territory), 21 control regions (comparison te rritory) and Bryansk city. Childhood population of the supervision ter ritory, radionuclide contaminated after the Chernobyl accident, was 58 600 residents, that of comparison territory and Bryansk city 158 600 and 98 900, respectively (1992). In 1986-1991 59 ALL cases (annual inc idence 3.11 per 100 000), 7 ANLL cases (0.38) 2, 1 and 19 of unspecifi ed leukemia, CML, NHL (1.00), respectively, have been registered. Inci dence rate and age distribution for both AL and NHL were typical for c hildhood population of industrial countries. AL incidence was highest in Bryansk city (4.21), in supervision territory it was 4.1, in compar ison regions 3.05. There was a statistically significant excess of AL incidence in 1986 among those aged 0-15 years in the supervision terri tory based on 8 cases (annual incidence 13,7, a 95% confidence interva l 6-27).