TOTAL MORTALITY DYNAMICS OF THE POPULATION OF THE ABAY AND BESKARAGAI DISTRICTS EXPOSED TO RADIATION AS A RESULT OF NUCLEAR WEAPONS TESTS (1949-1975)
Introduction. Mortality rates are an indicator of population health in various countries worldwide. They are influenced by sociodemographic factors, the state of the healthcare system, and environmental factors, including exposure to ionizing radiation.
The aim of our study is to analyze mortality rates in the Abay and Beskaragay districts of the Abay region exposed to radiation as a result of nuclear weapons testing from 1949 to 1975.
Materials and Methods. The study data consisted of cause-of-mortality certificates for the population of three districts in the region from 1949 to 1975. The population of two districts (Abay and Beskaragay) was exposed to effective equivalent doses of 625 to 870 mSv. The comparison group consisted of residents of the Kokpekty district. A total of 16,348 cause-of-mortality certificates were copied and analyzed. Effective equivalent doses of radiation exposure for the population of the study areas were obtained from the State Scientific Automated Medical Registry database.
Results. A significant increase in overall mortality rates for the population of all age groups in the Beskaragay district of the Abay region was found 4-21 years after the onset of irradiation compared to the rates in the control Kokpekty district. No significant differences were found in overall mortality rates in the Abay district compared to the control group. A modifying effect of age on overall mortality rates was established for the population of the exposed groups. In subsequent years (26-49 years after the onset of irradiation), 6 to 8 peaks of significantly higher overall mortality rates were recorded among men and women in the Beskaragay district compared to the control group. Among men and women in the Abay district, the overall mortality rate did not differ significantly from the control group.
Conclusion. The overall mortality curve was remittent, with significant peaks alternating with plateaus in some years. No dose-response relationship was found for overall mortality rates in the study areas.
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Радиациялық қауіпсіздік, радиациялық медицина және оңалту мәселелері
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Kissina R.M., Smailova Zh.K., Pivina L.M., Chaizhunussova N.Zh., Orekhov А.Yu., Lipikhina A.V., Massabayeva M.R., Baibussinova А.Zh., Ygiyeva D.G., Batenova G.B., Sabitova V.R., Kozhanova S.K., Mukanova D.А., Abenova М.B., Lepesbayev М.N., Akhmadiyeva Т.A., Orazalina А.S., Apbassova S.A., Shabdarbayeva D.M., Dyussupov A.А. Total Mortality dynamics of the population of the Abay and Beskaragai districts exposed to radiation as a result of nuclear weapons tests (1949-1975) // Nauka i Zdravookhranenie [Science & Healthcare]. 2025. Vol.27 (4), pp. 257-265. doi 10.34689/SH.2025.27.4.031Ұқсас жариялымдар:
TOTAL MORTALITY DYNAMICS OF THE POPULATION OF THE ABAY AND BESKARAGAI DISTRICTS EXPOSED TO RADIATION AS A RESULT OF NUCLEAR WEAPONS TESTS (1949-1975)