Spatial and Temporal Epidemiological Assessment of Breast Cancer Incidence and Mortality in Kazakhstan, 1999-2013

Beysebayev, Eldar; Bilyalova, Zarina; Kozhakeeva, Lyazzat; Baissalbayeva, Ainur; Abiltayeva, Aizhan

doi:10.7314/apjcp.2015.16.15.6795

Cited by 8 publications

(7 citation statements)

References 13 publications

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“…In the study period, about 20% of new cases and deaths from breast cancer were registered in the two large cities of Kazakhstan (1, 2). These cities host more medical organizations than other regions of the country; therefore, the changes in epidemiological indicators allow assessing the efficiency of national mammalogical screening in the country, also in the megapolises.…”

Section: Discussionmentioning

confidence: 99%

Breast Cancer in Megapolises of Kazakhstan: Epidemiological Assessment of Incidence and Mortality

Igissinov¹,

Toguzbayeva²,

Turdaliyeva³

et al. 2020

ijph

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Background: Breast cancer is the most common malignant disease among the female population of Kazakhstan like in many developed countries of the world (Canada, UK, US, Western Europe), and it accounts for every 5th tumor. We aimed to assess the epidemiological aspects of breast cancer incidence and mortality among Almaty and Astana (Now Nur-Sultan), Kazakhstan residents in 2009-2018. Methods: A retrospective study using modern descriptive and analytical methods of epidemiology was conducted to evaluate the breast cancer incidence and mortality in megapolises of Kazakhstan. Results: The average annual age-standardized incidence rate of breast cancer amounted to 61.90/0000 (95% CI=56.2-67.6) in Almaty and 61.20/0000 (95% CI=56.765.7) in Astana. The average age-standardized mortality was 19.20/0000 (95% CI=17.3-21.1) in Almaty and 19.30/0000 (95% CI=17.1-21.4) in Astana. The standardized incidence in the megapolises tended to increase (Тgr=+0.8% in Almaty and Тgr=+1.4% in Astana), while the mortality was decreasing (Тdec=−4.2% in Almaty and Тdec=−1.1% in Astana). According to the component analysis, the growth in the number of breast cancer cases was due to a population increase (ΔP=+130.4% in Almaty and ΔP=+93.2% in Astana), with a notable decrease of factors related to the risk of getting sick (ΔR=−27.9% in Almaty, ΔR=−6.1% in Astana). Conclusion: This is the first epidemiological study to assess the changes in incidence and mortality from breast cancer in megapolises of Kazakhstan because of screening. The results of this study can be used to improve the government program to combat breast cancer.

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Section: Discussionmentioning

confidence: 99%

Breast Cancer in Megapolises of Kazakhstan: Epidemiological Assessment of Incidence and Mortality

Igissinov¹,

Toguzbayeva²,

Turdaliyeva³

et al. 2020

ijph

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“…Astana and Almaty showed a high incidence rate in Kazakhstan. Ethnicity and compliance with screening recommendation affect breast cancer [24]. A study in India showed that the age standardized incidence rates of breast cancer increased from 24.8 in 1988 to 41.0 in 2012 in Delhi.…”

Section: Discussionmentioning

confidence: 99%

Clustering 46 Asian countries according to the trend of breast cancer incidence rate from 1990- 2016: An application of growth mixture model

Azadikhah¹,

Mehrabani²,

Shahraki³

2020

Preprint

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Breast cancer among Asian countries is the second cause of cancer death and remains as a challenging issue in woman health as 39% of all new cases of breast cancer have been diagnosed in Asia. The current study was devoted to recognize different patterns of breast cancer incidence rate among Asian countries. Information about the incidence rates of female breast cancer within 1990-2016 years was extracted from Gapminder web site and growth mixture model was developed to describe the growth patterns and provide a set of tools to investigate the individual differences in change. Our findings suggest an overall increasing trend throughout the continent, but individual trajectories show different behaviors among countries. Bayesian information creation showed that 3-cluster model was the best. Cluster one countries including: Bangladesh, Israel, Kyrgyz republic, Maldives, Nepal, North Korea, Tajikistan and Timor-Leste, the slope of -0.13 suggests a slight negative trend for the incidence rate of breast cancer. 17 countries including: Armenia, Bahrain, Brunei, Cyprus, Iraq, Japan, Jordan, Kazakhstan, Kuwait, Lebanon, Malaysia, Pakistan, Philippines, Qatar, Singapore, South Korea, United Arab Emirate which belongs to cluster 2, had not only a high intercept that means higher amounts of incidence rate in 1990 year, but also a slope of 0.96, indicating a sharp increase trajectory. Also slope of 0.38 showed a slow increase in the incidence rate of breast cancer over time for another 21 countries. In conclusion, increase of breast cancer incidence among cluster 2 countries is tremendous therefore effective strategies for prevention are urgently needed.

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“…Large variations in both the incidence and mortality from breast cancer have been observed between the regions of Kazakhstan. Nur-Sultan, Almaty, and the four central and eastern regions of Kazakhstan have been reported to have the highest mortality from breast cancer [6]. Recent studies have shown some decrease in mortality from breast cancer in large cities of Kazakhstan in parallel with an increase in proportion of cancers diagnosed at early stages [16].…”

Section: оригинальные статьиmentioning

confidence: 99%

“…Several studies have reported an increase in the incidence of breast cancer in Kazakhstan [6,11,15,24]. The latest data suggest that the age-standardized incidence of breast cancer is 37.2 per 100,000 while cause-specific mortality is 14.8 per 100 000 [25].…”

Section: Introductionmentioning

confidence: 99%

Breast Cancer in Western Kazakhstan: Incidence, Mortality and Factors Associated With Survival

Айтмагамбетова

Bekmukhambetov²,

Бекмухамбетов³

et al. 2021

Ekologiya cheloveka (Human Ecology)

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Background: Breast cancer is the most common cancer among women. Incidence of and mortality from breast cancer varies considerably between countries. The evidence from Kazakhstan, however, is almost non-existent in international peer-reviewed literature. Aim: To study incidence of and mortality from breast cancer in Western Kazakhstan and assesse selected determinants of survival among breast cancer patients. Methods: A registry-based historical cohort study. Data on all primary cases of breast cancer in the Aktobe region in 2014-2018 and their follow-up data were obtained from the regional cancer registry. Standardized incidence and mortality data were calculated using Segi world reference population. One-and five-years survival was calculated using actuarial analysis. Factors associated with survival were assessed using multivariable Cox regression. Crude and adjusted hazard ratios (HR) were calculated with 9 5 % confidence intervals (CI). Results: From 2014 to 2018, 891 new cases and 251 deaths from breast cancer were registered in the Aktobe region. Standardized incidence of breast cancer increased from 40.8 to 44.6 per 100,000 while standardized mortality decreased from 12.4 to 8.8 per 100,000 during the study period. Only 16.4 % of cases were diagnosed at stage I, while 21.6 % of cancer cases were detected at stage III or IV. One-and five-year survival estimates based on the registry data was 94.

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Spatial and Temporal Epidemiological Assessment of Breast Cancer Incidence and Mortality in Kazakhstan, 1999-2013

Cited by 8 publications

References 13 publications

Breast Cancer in Megapolises of Kazakhstan: Epidemiological Assessment of Incidence and Mortality

Breast Cancer in Megapolises of Kazakhstan: Epidemiological Assessment of Incidence and Mortality

Clustering 46 Asian countries according to the trend of breast cancer incidence rate from 1990- 2016: An application of growth mixture model

Breast Cancer in Western Kazakhstan: Incidence, Mortality and Factors Associated With Survival

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