Ukrainian Radiation Protection Institute, 53 Melnykova Street, 04050 Kiev, Ukraine.
Health Phys. 2013 Jan;104(1):78-86. doi: 10.1097/HP.0b013e31826e188e.
For the purpose of improving retrospective internal thyroid dose estimations for children and adolescents following the Chernobyl accident, age- and gender-dependent thyroid masses have been estimated for the children of Kiev and Zhytomyr oblasts, which are two of the most contaminated regions of Northern Ukraine. For children ages 6-16 y, the thyroid masses were based on the measurements by ultrasound of the thyroid volumes of about 60,000 children performed by the Sasakawa Memorial Health Foundation in the 1990s. For children aged 0 to 36 mo, because thyroid mass values for Ukrainian children were not found in the literature, autopsies were performed for the specific purpose of this paper. Thyroid mass values for children aged 3-5 and 17-18 y were either interpolated or extrapolated from the measured data sets. The results for children aged 6-16 y indicate that the thyroid masses of rural children are, on average, slightly higher (by about 8%) than the thyroid masses of urban children. The geometric means of the thyroid masses were estimated as 5.2 g, 9.0 g, and 15.8 g for boys and 5.2 g, 9.4 g, and 16.0 g for girls aged 5, 10, and 15 y, respectively. Those values are greater than the reference values that ICRP recommends for iodine-sufficient populations, thus reflecting the fact that the northern part of Ukraine is iodine-deficient.
为了改进切尔诺贝利事故后儿童和青少年的回顾性内甲状腺剂量估算，对乌克兰北部污染最严重的两个地区基辅和日托米尔州的儿童进行了年龄和性别相关的甲状腺质量估算。对于 6-16 岁的儿童，甲状腺质量是基于 Sasakawa Memorial Health Foundation 在 20 世纪 90 年代对约 60000 名儿童进行的甲状腺体积超声测量得出的。对于 0-36 个月的儿童，由于在文献中未找到乌克兰儿童的甲状腺质量值，因此进行了尸检。对于 3-5 岁和 17-18 岁的儿童，甲状腺质量值是从测量数据集内插或外推得出的。对于 6-16 岁的儿童，结果表明农村儿童的甲状腺质量平均略高（约 8%）于城市儿童的甲状腺质量。分别为男孩 5 岁、10 岁和 15 岁的甲状腺质量几何平均值为 5.2 克、9.0 克和 15.8 克，女孩为 5.2 克、9.4 克和 16.0 克。这些值大于 ICRP 建议碘充足人群的参考值，反映了乌克兰北部碘缺乏的事实。
