Oncoepidemiologic situation on the territory of the Kaluga region 10 years after the Chernobyl accident

"Radiation and Risk" 1996. vol. 8, pp. 72-84


Ivanov V.K., Nilova E.V., Efendiev V.A.1, Gorsky A.I., Pitkevich V.A., Leshakov S.Y.1, Shiryaev V.I.1
Medical Radiological Research Centre of RAMS, Obninsk;
1 Department of Health, Administration of Kaluga Region, Kaluga


Cancer morbidity and mortality has been studied in the contaminated areas of the Kaluga region. The objective of the study was to evaluate to what extent the radiation factor has influenced the existing levels of cancer morbidity and mortality. Analysis was performed of standardized ratios of cancer incidence and mortality and corresponding population risks. The conclusion based on the analysis suggests that the current incidence rates of malignant neoplasms in the population of the studied areas affected by the Chernobyl accident were formed under the influence of a number of factors which showed themselves before the accident. Of particular concern are the trends noticed in oncoepidemiologic processes in the Ulyanovsky district of the region. Thus far no statistically reliable effect of the radiation factor on cancer incidence (except thyroid cancer in the female population of the contaminated areas) has been detected. The cancer morbidity and mortality in the contaminated areas are largely in agreement with the general indicators throughout the region. By and large the drawn conclusion is consistent with data of the world practice on latent periods in inducing radiogenic cancers and extent of biological effects for the irradiation levels to which the population on the contaminated areas is exposed.

Key words
Research, oncological morbidity, oncological mortality, regions contaminated with radionuclides, Kaluga region, dynamics of standardized relations, incidence rate, radiation factor, radiation levels, population.


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