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Title: Age- and sex-specific relative thyroid radiation exposure to 131I in Ukraine after the Chernobyl accident. Author: Heidenreich WF, Kayro I, Chepurny M, Jacob P, Spak V, Goulko GM, Paretzke HG. Journal: Health Phys; 2001 Mar; 80(3):242-50. PubMed ID: 11219536. Abstract: The age- and sex-dependence of the 131I induced count rates is determined for the measurements performed in Ukraine after the Chernobyl accident on the thyroids of over 60,000 persons. For this, the individual measurements are scaled in such a way that the mean values over age and sex on one side and the mean values over measurement series on the other side are normalized to one. The resulting distribution of all scaled measurements is roughly log-normal. Half of them lie within a factor 1.6 of the median. 131I induced count rates have a minimum at birth year 1986, about half the value of adults. The maximum count rates with about 30% above adults are reached for males around age 16 y. The count rates are up to about 40% (at age 14-17 y) higher for males than for females. The results are within statistical uncertainties independent of the geographical area and the urban or rural nature of the settlements. Starting from the relative count rates, the age- and sex-dependence is calculated for the thyroid activities 1 mo after the accident for the integrated activities and for the doses. The dose of young children is a factor of about 6.5 higher than that of adults. Uncertainties are estimated throughout.[Abstract] [Full Text] [Related] [New Search]