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Health Risks of Ionizing Radiation: - Clark University

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96 <strong>Radiation</strong> Workers<br />

<br />

ERR estimates 0.1/Sv (90% CI –0.3-0.5; solid cancer),<br />

2.6/Sv (90% CI 0.0-7.2; leukemia), and 4.1/Sv (90% CI<br />

0.0-15; multiple myeloma). Significantly positive pleural<br />

cancer SMR (2.0, 1.4-2.7)<br />

Mean external<br />

dose 31 mSv<br />

Cohort study <strong>of</strong> cancer mortality in 124,743<br />

employees on the UK National Registry for<br />

<strong>Radiation</strong> Workers 1976-1992<br />

Muirhead<br />

et al.<br />

1999<br />

Significant dose-response trends for several types <strong>of</strong><br />

cancer 2 . Significantly positive SIRs for melanoma and<br />

thyroid cancer<br />

Mean external<br />

dose 6.6 mSv<br />

Cohort study <strong>of</strong> cancer incidence in 191,333<br />

employees on the National Dose Registry <strong>of</strong><br />

Canada 1951-1988<br />

Sont et al.<br />

2001<br />

RR 1.8 (90% CI 1.2-2.7) exposure to more than 10 mSv<br />

92% <strong>of</strong> doses

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