Pediatric, elderly, and emerging adult-onset peaks in Burkitt's lymphoma incidence diagnosed in four continents, excluding Africa

• Published in: American journal of hematology Vol. 87; no. 6; pp. 573 - 578
• Main Authors: Mbulaiteye, Sam M., Anderson, William F., Ferlay, Jacques, Bhatia, Kishor, Chang, Cindy, Rosenberg, Philip S., Devesa, Susan S., Parkin, Donald M.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01-06-2012; Wiley-Liss; Wiley Subscription Services, Inc
• Subjects: Adolescent; Adult; Age of Onset; Aged; Americas - epidemiology; Asia - epidemiology; Australia - epidemiology; Biological and medical sciences; Burkitt Lymphoma - epidemiology; Child; Child, Preschool; Europe - epidemiology; Female; Hematologic and hematopoietic diseases; Hematology; Humans; Incidence; Infant; Infectious diseases; Leukemias. Malignant lymphomas. Malignant reticulosis. Myelofibrosis; Male; Medical sciences; Middle Aged; Viral diseases; Young Adult; Africa; Americas; Australia; Asia; Europe; Human; Pediatrics; Hematology; Burkitt lymphoma; B cell neoplasm; Malignant hemopathy; Non Hodgkin lymphoma; Epidemiology; Incidence; Infection; Age of onset; Lymphoproliferative syndrome; Viral disease; Adult; Diagnosis; Child; Elderly; Cancer
• ISSN: 0361-8609; 1096-8652
• DOI: 10.1002/ajh.23187

Burkitt's lymphoma (BL) in the general population and immunosuppressed persons with AIDS in the United States was characterized by three age‐specific incidence peaks near 10, 40, and 70 years. We hypothesized that BL from different geographical areas may exhibit pediatric, adult, and elderly age incidence peaks. We investigated this hypothesis using data on 3,403 cases obtained from the International Agency for Research on Cancer (1963–2002). Data from Africa were sparse or incomplete, and thus were excluded. Age‐standardized rates (ASRs) and age‐specific incidence rates were calculated, supplemented with the calculations performed using age–period–cohort (APC) models. The ASR rose 5.3% (95% confidence interval [CI], 5.0–5.6) per year in males and 4.6% (95% CI, 4.5–4.8) in females. The ASR increased gradually in children, steeply in adults and most rapidly in the elderly both in males and in females. Overall, BL male/female ASR ratio was 2.5, but it declined from 3.1 (95% CI, 3.0–3.3) for pediatric BL to 2.3 (95% CI, 2.2–2.4) for adult BL and 1.5 (95% CI, 1.4–1.6) for elderly BL. Age‐specific incidence peaks occurred near 10 and 70 years in all regions and periods. A peak near 40 years of age emerged in the mid‐1990s, particularly in men. Findings using APC models confirmed those based on the standard analyses. Our findings, based on the international BL cases, support our hypothesis that BL is multimodal and that BL peaks at different ages may be clues to differences in the etiology and/or biology of BL at those ages. Am. J. Hematol. 87:573–578, 2012. © 2012 Wiley Periodicals, Inc.