MORBIDITY AND MORTALITY RATE OF BREAST CANCER IN KAZAKHSTAN, 2015-2019
Introduction. Female breast cancer has now surpassed lung cancer as the leading cause of global cancer incidence in 2020, with an estimated 2.3 million new cases, representing 11.7% of all cancer cases. It is the fifth leading cause of cancer mortality worldwide, with 685,000 deaths.
Aim of our study was to define the morbidity and mortality from breast cancer in the Republic of Kazakhstan for the period 2015-2019.
Materials and Methods: The analysis of the incidence and mortality of breast cancer in the in the Republic of Kazakhstan for the period 2015-2019 has been carried out. The data for the analysis were extracted from official statistical sources: Forms No. 35 Annual "Report on patients with malignant neoplasms». The incidence rates were calculated as the number of cases per 100000 person-years of follow-up. The number of population is obtained from the Bureau of National Statistics of the Agency for Strategic Planning and Reform of the Republic of Kazakhstan. A direct standardization method was used for calculation of the standardized morbidity and mortality rate [11].
Results. The incidence rate of breast cancer increased in 2016, decreased in 2017, then tended to increase and in 2019 the incidence rate was equal to 52,3 per 100 thousand women. The mortality rate of breast cancer during the study period decreased from 15,3 per 100 thousand women population in 2015 to 12,0 per 100 thousand women population in 2019. «Crude» rates of morbidity were high in the 65-74 year-old age group, in the second place 55-64 year-old age group, in the third place 75-84 year-old age group. Standardized incidence rates were high in the 55-64-year-old age group, followed by the 45-54-year-old age group and the 65-74-year-old age group. «Crude» mortality rates of breast cancer were high in the 65-74 year-old age group, in second place was the 75-84 year-old age group, in third place was the age group over 85 years. Standardized mortality rates were highest in the 55-64-year-old age group. In second place was the age group of 45-54 years, in third place the age group of 65-74 years.
Conclusion. The incidence of breast cancer tends to increase. The mortality rates from breast cancer during the study period tended to decrease. The «crude» incidence rates were highest in the 65-74-year-old age group. After standardization, the highest incidence rates were in the age group of 55-64 years. The «crude» mortality rates of breast cancer were high in the 65-74-year-old age group. After standardization, high mortality rates were found in the 55-64-year-old age group.
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Chertischeva I.L., Li V.Ye., Bekezhan A.B., Masadykov A.S., Shalgumbayeva G.M., Sajdualiev D.N. Morbidity and mortality rate of breast cancer in Kazakhstan, 2015-2019 // Nauka i Zdravookhranenie [Science & Healthcare]. 2021, (Vol.23) 2, pp. 148-154. doi 10.34689/SH.2021.23.2.016Related publications:
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