title: [Incidence of chronic lymphocytic leukemia in the Department of Côte-d'Or].
abstract: The incidence of chronic lymphocytic leukaemia has been studied over 4 years (1980-1983) in the region of Côte-d'Or (population 478,008). The crude annual incidence rate was 7.0/100,000 for males and 3.5/100,000 for females. The corresponding age standardized rates were 5.6 and 1.8. The sex ratio was 3.1. Compared to other population based registries, the incidence is higher in Côte-d'Or and the rates are among the highest reported in the world for males and females. Age and sex specific incidence rates were low before 50 years of age and increased in older age with a male predominance. The risk of chronic lymphocytic leukaemia was slightly higher in urban than in rural areas. All cases were classified according to Binet's classification: 74% were staged O or I. The ABC classification was applied to cases diagnosed in 1982-1983: 83% were staged A. These results suggest that cases diagnosed in a well-defined population are less severe than those reported in hospital statistics.
mesh_terms: D000328:Adult; D000368:Aged; D003710:Demography; D005260:Female; D005602:France; D006801:Humans; D007945:Leukemia, Lymphoid / Q000145:classification / Q000453:epidemiology* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012042:Registries; D012744:Sex Ratio
vernacular_title: Etude de l'incidence de la leucémie lymphoïde chronique dans le département de la Côte-d'Or.