National Academy of Medical Sciences of Ukraine
State Institution "The National Research Center for Radiation Medicine"

ISSN 2313-4607 (Online)
ISSN 2304-8336 (Print)

Problems of Radiation Medicine and Radiobiology



Buzunov V. O., Voychulene Yu. S., Domashevska T. Ye., Khabarova T. P., Kartushin G. I.

Postaccident changes in health status of the Chornobyl cleanup workers 19861987 (period of observation 19882012)

Objective. To determine postaccident changes in health status of the Chornobyl cleanup workers 19861987, peculiarities of nontumor incidence.
Materials and methods. Long-term cohort epidemiological study (period of observation 19882012) has been conducted using data of the State Registry of Ukraine of Persons Affected by the Chornobyl Accident. Study cohort 196,423 males-participants of the Chornobyl recovery operations in 19861987. Epidemiological and mathematical-and-statistical methods were used.
Results. We have found a dramatic deterioration of the Chornobyl cleanup workers health due to the growth of wide range of nontumor diseases, especially circulatory, digestive, respiratory, endocrine, genitourinary and nervous system diseases. In postaccident period, disability and mortality have increased significantly due to nontumor diseases. Circulatory diseases make major contribution to the structure of causes of disability and death. When studying the dynamics of nontumor incidence, we have found that in 19881992 the highest, throughout postaccident period, rate of mental and behavioral disorders, diseases of the nervous system was mainly due to disorders of the autonomic nervous system. Since 19931997, rate of this pathology has significantly reduced and remained stable in subsequent years of observation. Thus, we can assume that in the early postaccident period, stress factor in combination with radiation one had the greatest impact on health of cleanup workers, resulting in the development of other nontumor diseases in the remote postaccident period.
Conclusions: The study revealed an evident increase in nontumor incidence, disability and mortality from nontumor diseases among Chornobyl cleanup workers 19861987; the highest rate of nontumor incidence was observed 1221 years after the Chornobyl accident.

Key words: Chornobyl disaster, Chornobyl cleanup workers, nontumor diseases, incidence.

Problems of radiation medicine and radiobiology. 2015;20:157-173.

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