Reconstruction of thyroid dose after the Chernobyl accident

Gavrilin, Yuri I; Khrouch, Valeri; Shinkarev, Sergey

doi:10.1016/s0531-5131(01)00619-7

Cited by 1 publication

(2 citation statements)

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“…Belarus. The derivation of thyroid doses for the Belarusian population has been described elsewhere [16][17][18]. In brief, dose estimates for 125 000 persons, who had the 131 I activity in the thyroid measured during May and June of 1986, were derived based on questionnaire responses including information on the consumption of locally produced milk.…”

Section: Thyroid Dose Estimatesmentioning

confidence: 99%

“…For settlements with either only a few or no measurements of the 131 I content in the human thyroid, average age-dependent thyroid doses were calculated using a modification of the semi-empirical model [16][17][18]. This model is based on the relationship between the mean thyroid dose of adults and the deposition density of 131 I.…”

Section: Thyroid Dose Estimatesmentioning

confidence: 99%

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Thyroid cancer among Ukrainians and Belarusians who were children or adolescents at the time of the Chernobyl accident

Jacob

Bogdanova²,

Buglova³

et al. 2006

J. Radiol. Prot.

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Our objective is to assess the regional and temporal dependences of the baseline cases contributing to thyroid cancer incidence among those exposed in childhood or during adolescence in Belarus and Ukraine after the Chernobyl accident. Data are analysed for Kyiv and Sevastopol City and the 25 oblasts (regions) in Ukraine, and for Minsk and Gomel City and the 6 oblasts in Belarus. Average thyroid doses due to the Chernobyl accident were assessed for every birth year in the period from 1968 to 1985. Case data pertain to people who underwent surgical removal of thyroid cancers during the period 1986 to 2001 and who were allocated to their place of residence at the time of the accident. The 35 oblasts/cities were subdivided into an upper, middle and lower group of baseline thyroid cancer incidence. Poisson regressions were performed to estimate age, time and gender dependences of the baseline incidence rates in the three groups. The majority of oblasts/cities with high average doses and the majority of Belarusian oblasts/cities belong to the upper group of baseline thyroid cancer incidence. The baseline in the upper group is estimated to be larger than in the middle group by a factor of 2.3, and by a factor of 4.0 when compared to the lower group. The baseline incidence increases with age and with time since exposure. Estimated baseline incidence rates were found to increase from 1988 to 1999 by factors of three and two for the upper and the two lower groups respectively. The estimated thyroid cancer incidence rates in Belarus and Ukraine, and their dependences on gender and age, are consistent with observed rates found in the larger cancer registries of other countries. In conclusion, the baseline cases are found to contribute about 70% to the thyroid cancer incidence in Ukraine, and about 40% to the incidence in Belarus.

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Section: Thyroid Dose Estimatesmentioning

confidence: 99%

Section: Thyroid Dose Estimatesmentioning

confidence: 99%