Purpose. Conducting a comparative analysis and assessment of the dynamics of endemic goiter and iodine deficiency in the population of boys of the Republic of Dagestan at the age of 11–13 years for the period 2002–2013, living in different ecological and geographical zones.Patients and methods. 3457 adolescent boys 11–13 years old, living in different ecological and geographical zones, were surveyed. Methods of investigation were: determination of daily excretion of iodine in urine, palpation and ultrasound examination of the thyroid gland.Results. It was revealed that during the period of preventive measures there was an improvement in iodine supply regardless of the area of residence. However, against the background of preventive measures in the lowland zone, iodine deficiency decreased not evenly, and in some cases the aggravation occured.Conclusion. The incidence of endemic goiter and the severity of iodine deficiency in boys aged 11–13 years in the mountain and foothill ecology and geographical zones of the Republic of Dagestan are generally comparable to those of iodine deficiency and endemic goiter in the general population of the Republic of Dagestan. On a flat ecogeographical zone, endemic goiter in boys 11-13 years is less common than in the general population in this region. Preventive measures to combat iodine deficiency have led to a decrease in the frequency of endemic goiter, but constant monitoring is required. As a result, there was no correlation between the incidence of endemic goiter and the severity of iodine deficiency.
