Features of the incidence of breast cancer in the Republic of Kazakhstan

Aim of the study. Analysis of breast cancer incidence in Kazakhstan for the period 2020 – 2022.

Materials and methods. The study included all registered cases of breast cancer morbidity and mortality in the Republic of Kazakhstan for the period 2020-2022. Data for analysis were taken from the official statistical source: Statistical collection «Health of the population of the Republic of Kazakhstan and the activities of healthcare organizations in 2020»; Statistical collection “Health of the population of the Republic of Kazakhstan and the activities of healthcare organizations in 2021-2022.” The search depth was 3 years, from 2020 to 2022. A direct standardization method using a global population standard was used to calculate standardized morbidity and mortality rates.

Results and discussion. As a result of studying statistical data for 2020-2022, it was found that cancer incidence rates per 100 thousand population in 2022, compared with 2021, increased by 5.2%, and compared to 2020 increased by 13.5%. In the structure of incidence, both in 2020 and 2021, and in 2022, breast cancer occupied 1st place, with an increase in dynamics from 2020 to 2022 from 8.76 to 9.73 per 100 thousand population.

An analysis of the incidence of breast cancer by stages of the disease in the context of regions of Kazakhstan showed that high rates of stages I and II of breast cancer were established in the Kyzylorda, Pavlodar, and Atyrau regions. The lowest incidence rates of stage I and II breast cancer were observed in Akmola, Mangistau and Turkestan regions.

Conclusions. According to the results of our review, many studies indicate that this disease continues to be the most frequently diagnosed malignant neoplasm and the leading cause of death among women in various countries of the world, including Kazakhstan. The conclusion of this article is that the incidence and mortality from breast cancer continues to be an urgent epidemiological problem in Kazakhstan, requiring further scientific research to identify risk factors.

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