Leukaemia incidence in the Techa River Cohort: 1953–2007
Journal Article
·
· British Journal of Cancer
- Urals Research Center for Radiation Medicine, Chelyabinsk (Russian Federation). Epidemiology Lab.; DOE/OSTI
- Univ. of Illinois, Chicago, IL (United States). School of Public Health, Division of Epidemiology/Biostatistics
- International Agency for Research on Cancer, Lyon (France). Section of Environment and Radiation; National Cancer Institute, Bethesda, MD (United States). Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics
- Hirosoft International Company, Eureka, CA (United States)
- Urals Research Center for Radiation Medicine, Chelyabinsk (Russian Federation). Epidemiology Lab.
Background: Little is known about leukaemia risk following chronic radiation exposures at low dose rates. The Techa River Cohort of individuals residing in riverside villages between 1950 and 1961 when releases from the Mayak plutonium production complex contaminated the river allows quantification of leukaemia risks associated with chronic low-dose-rate internal and external exposures. Methods: Excess relative risk models described the dose–response relationship between radiation dose on the basis of updated dose estimates and the incidence of haematological malignancies ascertained between 1953 and 2007 among 28 223 cohort members, adjusted for attained age, sex, and other factors. Results: Almost half of the 72 leukaemia cases (excluding chronic lymphocytic leukaemia (CLL)) were estimated to be associated with radiation exposure. These data are consistent with a linear dose response with no evidence of modification. The excess relative risk estimate was 0.22 per 100 mGy. There was no evidence of significant dose effect for CLL or other haematopoietic malignancies. Conclusion: These analyses demonstrate that radiation exposures, similar to those received by populations exposed as a consequence of nuclear accidents, are associated with long-term dose-related increases in leukaemia risks. Using updated dose estimates, the leukaemia risk per unit dose is about half of that based on previous dosimetry.
- Research Organization:
- Univ. of Illinois, Chicago, IL (United States)
- Sponsoring Organization:
- Russian Ministry of Health; USDOE Office of Environment, Health, Safety and Security (AU)
- OSTI ID:
- 1623740
- Journal Information:
- British Journal of Cancer, Journal Name: British Journal of Cancer Journal Issue: 11 Vol. 109; ISSN 0007-0920
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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