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Cancer mortality in residents of the terrain-shielded area exposed to fallout from the Nagasaki atomic bombing


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タイトル: Cancer mortality in residents of the terrain-shielded area exposed to fallout from the Nagasaki atomic bombing
著者: Yokota, Kenichi / Mine, Mariko / Kondo, Hisayoshi / Matsuda, Naoki / Shibata, Yoshisada / Takamura, Noboru
発行日: 2018年 1月 1日
出版者: 日本放射線影響学会 / Japanese Radiation Research Society
引用: Journal of Radiation Research, 59(1), pp.1-9; 2018
抄録: The health effects of radiation exposure from the atomic bomb fallout remain unclear. The objective of the present study is to elucidate the association between low-dose radiation exposure from the atomic bomb fallout and cancer mortality among Nagasaki atomic bomb survivors. Of 77 884 members in the Nagasaki University Atomic Bomb Survivors Cohort, 610 residents in the terrain-shielded area with fallout were selected for this analysis; 1443 residents in the terrain-shielded area without fallout were selected as a control group; and 3194 residents in the direct exposure area were also selected for study. Fifty-two deaths due to cancer in the terrain-shielded fallout area were observed during the follow-up period from 1 January 1970 to 31 December 2012. The hazard ratio for cancer mortality in the terrain-shielded fallout area was 0.90 (95% confidence interval: 0.65-1.24). No increase in the risk of cancer mortality was observed, probably because the dose of the radiation exposure was low for residents in the terrain-shielded fallout areas of the Nagasaki atomic bomb, and also because the number of study subjects was small.
キーワード: epidemiology / atomic bomb survivors / cancer mortality / fallout / terrain shielding
URI: http://hdl.handle.net/10069/38268
ISSN: 04493060
DOI: 10.1093/jrr/rrx047
権利: © The Author 2017. Published by Oxford University Press on behalf of The Japan Radiation Research Society and Japanese Society for Radiation Oncology.This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:115 学術雑誌論文

引用URI : http://hdl.handle.net/10069/38268

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