原子力発電施設等の放射線業務従事者を対象とする低線量放射線による人体への影響に関する疫学的調査, 1991-2010

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タイトル別名
  • Fifth Analysis of Mortality of Nuclear Industry Workers in Japan, 1991-2010
  • ゲンシリョク ハツデン シセツ トウ ノ ホウシャセン ギョウム ジュウジシャ オ タイショウ ト スル テイセンリョウ ホウシャセン ニ ヨル ジンタイ エ ノ エイキョウ ニ カンスル エキガクテキ チョウサ,1991-2010

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Radiation Effects Association has carried out radiation epidemiological study for nuclear industry workers during 1990-2010. We assembled a cohort of 204,103 workers. The average cumulative dose was 13.8 mSv (median 1.0 mSv, interquartile range (IQR) 0.0-10.7 mSv) and the average follow-up period was 14.2 year. The present report has not concluded that low-dose radiation increases cancer mortality based on the follow-up data through 2010. One reason is that analyses among 75,442 respondents― the average cumulative dose was 25.8 mSv (median 6.3 mSv, IQR 0.2-28.0 mSv) and the average follow-up period was 8.3 year―to the lifestyle surveys revealed the decrease of the ERR after adjusting for smoking habits or educational year, suggesting that confounder has a large effect on the association between radiation exposure and mortalities in the cohort. Another reason is that in analyses on all cohort members, no significant ERR was observed in all death, and leukemia excluding chronic lymphoid leukemia. Significant ERR was seen in all cancers excluding leukemia, but this significance of the ERR might be affected by confounder such as smoking, because the significance of the ERR in all cancers excluding leukemia originates in the significance of the ERR in lung cancer.

収録刊行物

  • 保健物理

    保健物理 51 (1), 12-18, 2016

    日本保健物理学会

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