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Risk of hematological malignancies among Chernobyl liquidators

Ausrele Kesminiene 1 Anne-Sophie Evrard 1 Viktor K. Ivanov 2 Irina V. Malakhova 3 Juozas Kurtinaitis 4 Aivars Stengrevics 5 Mare Tekkel 6 Lynn R. Anspaugh 7 André Bouville 8 Sergei Chekin 2 Vadim V. Chumak 9 Vladimir Drozdovitch 8 Vladimir Gapanovich 10 Ivan Golovanov 11 Philippe Hubert 12 Sergei V. Illichev 13 Svetlana E. Khait 2 V. Kryuchkov 11 Evaldas Maceika 14 Marat Maksyoutov 2 Anatoly K. Mirkhaidarov 15 Semion Polyakov 3 Natalia Shchukina 2 Vanessa Tenet 1 Tatyana I. Tserakhovich 3 Aleksandr Tsykalo 16 Aleksandr R. Tukov 11 Elisabeth Cardis 1
1 Centre internationale de recherche sur le cancer
2 Medical Radiological Research Centre
3 Republican Scientific and Practical Center for Medical Technologies, Informatization, Administration and Managemetn of Health
4 Institute of Oncology
5 Latvian Centre of Oncology
6 National Institute for Health Development
7 Department of Radiology
8 U.S. National Cancer Institute
9 Scientific Centre for Radiation Medecine
10 Research Institute of Haematology and Blood Transfusion
11 Institute of Biophysics
12 INERIS - Institut National de l'Environnement Industriel et des Risques
13 ENERGOATOM
14 Institute of Physics
15 Republican Scientific Centre of Radiation Medecine and Human Ecology
16 Chernobyl Nuclear Power Plant
Abstract : A case-control study of hematological malignancies was conducted among Chernobyl liquidators (accident recovery workers) from Belarus, Russia and Baltic countries to assess the effect of low- to medium-dose protracted radiation exposures on the relative risk of these diseases. The study was nested within cohorts of liquidators who had worked around the Chernobyl plant in 1986-1987. A total of 117 cases [69 leukemia, 34 non-Hodgkin lymphoma (NHL) and 14 other malignancies of lymphoid and hematopoietic tissue] and 481 matched controls were included in the study. Individual dose to the bone marrow and uncertainties were estimated for each subject. The main analyses were restricted to 70 cases (40 leukemia, 20 NHL and 10 other) and their 287 matched controls with reliable information on work in the Chernobyl area. Most subjects received very low doses (median 13 mGy). For all diagnoses combined, a significantly elevated OR was seen at doses of 200 mGy and above. The excess relative risk (ERR) per 100 mGy was 0.60 [90% confidence interval (CI) _0.02, 2.35]. The corresponding estimate for leukemia excluding chronic lymphoid leukemia (CLL) was 0.50 (90% CI _0.38, 5.7). It is slightly higher than but statistically compatible with those estimated from A-bomb survivors and recent low-doserate studies. Although sensitivity analyses showed generally similar results, we cannot rule out the possibility that biases and uncertainties could have led to over- or underestimation of the risk in this study.
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Submitted on : Friday, March 21, 2014 - 2:17:27 PM
Last modification on : Wednesday, November 18, 2020 - 7:20:08 PM

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Ausrele Kesminiene, Anne-Sophie Evrard, Viktor K. Ivanov, Irina V. Malakhova, Juozas Kurtinaitis, et al.. Risk of hematological malignancies among Chernobyl liquidators. Radiation Research, Radiation Research Society, 2008, 170 (6), pp.721-735. ⟨10.1667/RR1231.1⟩. ⟨ineris-00963137⟩

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