Analyses of dynamics of thyroid diseases incidence in the period before puberty at the Kaluga region children irradiated owing to technogenic <sup>131</sup>I incorporation on antenatal, neonatal and breast-feeding stages of development
Is investigated dynamics of non-cancer thyroid diseases incidence in the period before puberty at iodine deficient southwest districts of Kaluga region children irradiated owing to technogenic <sup>131</sup>I incorporation on antenatal, neonatal and breast-feeding stages of development and at not irradiated persons of the same age. Is established that at not irradiated children thyroid diseases cumulative incidence was gradually progressively increased with age, having reached a maximum at last stage of observation – in the age period from 10 till 12 years. At the same time thyroid diseases incidence at irradiated children in the beginning sharply grew, having reached a maximum in the age period from 7 till 9 years (and at children irradiated on breast-feeding stages of development even earlier – in the age period from 4 till 6 years), and on a closing stage of the period of observation (in the age of from 10 till 12 years) it has decreased to levels, which were similar or even by lower than levels observed in the same period in groups of not irradiated children.