Худайбергенов У.А.

The article is dedicated to the study of the prevalence of the most significant urologial diseases in the Aral Sea region in primary health care. The study was performed in the Aral Sea region, which is a territory of ecological disaster, and paricular attention should be payed to its population in the development of curative and prophylactic measures.

The paper is dedicated to methods of determination of sample size for population incidence study. An analysis of incidence including urological incidence is necessary condition for achievement of high level population health, for intensive health care service development, for control of medical and preventive treatment facility function and management thereof. Determination of true prevalence rate of urological diseases needs for evaluation of so called hidden urological prevalence.