Post-Chornobyl Thyroid Cancers in Ukraine. Report 2: Risk Analysis

Abstract Likhtarov, I., Kovgan, L., Vavilov, S., Chepurny, M., Ron, E., Lubin, J., Bouville, A., Tronko, N., Bogdanova, T., Gulak, L., Zablotska, L. and Howe, G. Post-Chornobyl Thyroid Cancers in Ukraine. Report 2: Risk Analysis. Radiat. Res. 166, 375–386 (2006). On April 26, 1986, the worst nuclear reactor accident to date occurred at the Chornobyl (Chernobyl) power plant in Ukraine. Millions of people in Ukraine, Belarus and Russia were exposed to radioactive nuclides, especially 131I. Since then, research has been conducted on various subgroups of the exposed population, and it has been demonstrated that the large increase in thyroid cancer is related to the 131I exposure. However, because of study limitations, quantified risk estimates are limited, and there remains a need for additional information. We conducted an ecological study to investigate the relationship between 131I thyroid dose and the diagnosis of thyroid cancer in three highly contaminated oblasts in Northern Ukraine. The study populatio...