nato meeting, kaunas, august 8-10, 2005 1 chernobyl disaster and experience of population protection...

NATO meeting, Kaunas, August 8-10, 2005

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Chernobyl disaster and Chernobyl disaster and experience of population experience of population protection from nuclear protection from nuclear

accidentaccident

Boris Ledoshchuk, MD, PhD, Prof.Kiev Medical University

Natalia Gudzenko, MDResearch Center for Radiation Medicine of the AMS of Ukraine


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The outstanding prophylactic measures were performed on the wide territories of Ukraine, Russia and Belarus for the minimizing of the population irradiation. Total number of the resettled persons was more than 150 thousand persons.


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Chernobyl Catastrophe Victims comprise four main groups

•GGroup 1: persons involved in the clean-up operations at the Chernobyl Nuclear Plant (liquidators).•GGroup 2: Persons evacuated from the exclusion zone in 1986 (evacuees)•GGroup 3: Persons resident in the territories monitored (relocation zone) or resident there immediately after the accident (residents).•GGroup 4. Children born to parents in Groups 1-3 (offspring).


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Goals of the Registry creation Goals of the Registry creation and functioning are:and functioning are:

registration of sufferers monitoring of their health status changes in

the short-term and long-term perspective for the medical and social interventions

Ukrainian State Registry for Ukrainian State Registry for the persons suffered the persons suffered following Chernobyl following Chernobyl

catastrophecatastrophe


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Structure of persons registered at Structure of persons registered at the State Chernobyl Registry (SChR), the State Chernobyl Registry (SChR),

20042004

234,851271,974

74,165

1,057,723

Liquidators Evacuees Residents Offsprings


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Names (first, last, patronymic) Place of residence, Gender, Date of birth, Date of registration, Registration group,Codes of the medical institution, Number of the victim certificate

Place of stay in the contaminated area,Period of stay in the contaminated area,Dose of the external irradiation, Thyroid dose

Date of medical examination; Diseases first diagnosed in the current year, other diagnoses (ICD-9, ICD-10)Date of death, Cause of death, Data on the disability group, diagnose etc) Chronic diseases diagnosed before the accident

Identifiers (passport,

registration data)

Data on the stay in the

contaminated area

Data on the annual medical examinations


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Main problems to be solved Main problems to be solved at the State Registry:at the State Registry:

Completeness of the registration (hundred thousands of victims, living over the country)

Completeness of the individual data collected(identification data, impact factor, possible modifiers of the effect, results of the medical examination)

Quality of the data registered


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Structure of the male liquidators by Structure of the male liquidators by years of their clean-up activitiesyears of their clean-up activities ( (SChR SChR

data, data, 2004)2004)

129,856 53,5 %

48,425 19,9 %

20,445 8,43 %

12,793 - 5,3 %

3,875 - 1,6 %

27,549 - 12,2 %

0 20000 40000 60000 80000 100000 120000 140000

Number of persons

1986

1987

1988

1989

1990

Unknown

Yea

r of

cle

an-u

p


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Age structure of the male Age structure of the male liquidators liquidators

((SChR data, SChR data, 2004)2004)

0

10000

20000

30000

40000

50000

60000N

umbe

r of

per

sons

Year of birth


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Distribution of doses registered at the Distribution of doses registered at the State Chernobyl registry in liquidators in State Chernobyl registry in liquidators in

1986-19891986-1989

с дозой - 63,5 %41,1 %

0,0

20,0

40,0

60,0

80,0

100,0

< 5

5 - 9

.9

10-1

4.9

15 -

19.9

20-2

4.9

25 -

49.9

50 и

вы

ше

сГр

%

з дозою - 61,5%

39,8 %

0,0

20,0

40,0

60,0

80,0

100,0

< 5

5 - 9

.9

10-1

4.9

15 -

19.9

20-2

4.9

25 -

49.9

50 и

вы

ше

сГр

%

с дозой - 69,2%

30,8 %

0,0

20,0

40,0

60,0

80,0

100,0

< 5

5 - 9

.9

10-1

4.9

15 -

19.9

20-2

4.9

25 -

49.9

50 и

вы

ше

сГр

%

with dose - 63,5 %

41,1 %

0,0

20,0

40,0

60,0

80,0

100,0

< 5

5 -

9.9

10

-14

.9

15

- 1

9.9

20

-24

.9

25

- 4

9.9

50

и в

ыш

е

cGy

%

1988 with dose - 69,2%

30,8 %

0,0

20,0

40,0

60,0

80,0

100,0

< 5

5 -

9.9

10

-14

.9

15

- 1

9.9

20

-24

.9

25

- 4

9.9

50

и в

ыш

е

сGy

%

1989

with dose- 58,8 %

9,7 %

0,0

20,0

40,0

60,0

80,0

100,0

< 5

5 -

9.9

10-1

4.9

15 -

19.

9

20-2

4.9

25 -

49.

9

50 и

вы

ше

сGy

%

1987with dose - 28,6%

7,8 %

0,0

20,0

40,0

60,0

80,0

100,0

< 5

5 -

9.9

10

-14

.9

15

- 1

9.9

20

-24

.9

25

- 4

9.9

50

и в

ыш

е

сGy

%

1986


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State Chernobyl Registry: State Chernobyl Registry: FeasibilitiesFeasibilities

The State Registry is the sufficient tool of the registration and follow up of the Chernobyl Disaster victims

It contains the personal data (names, addresses, dates of: birth, death, diagnosing and registration, diagnosis)

Contains all necessary peaces of information for the person identification and tracing


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State Chernobyl Registry: State Chernobyl Registry:

LimitationsLimitations Use of the radiation dose values officially registered

in the SChR for the dose-dependent diseases risks estimation is limited by their incompleteness and uncertain precision

No information on the modifiers of the risk factor

The registration of the target diseases may be delayed and incomplete during the whole post-accidental period.

The diseases registered need to be verified by experts panel to clarify the type of the diagnoses.


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The successful assessment of the The successful assessment of the health outcomes of the Chernobyl health outcomes of the Chernobyl Catastrophe and prevention of Catastrophe and prevention of the possible future negative the possible future negative effects is in the combining of the effects is in the combining of the international scientific, financial international scientific, financial and humanitarian effortes for the and humanitarian effortes for the

solving thesesolving these problemsproblems


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The suspected medical effects of the The suspected medical effects of the Chernobyl disaster are being studied:Chernobyl disaster are being studied:

Ukrainian-American study of leukemia and related diseases in clean-up workers. (RCRM of the AMS of Ukraine, NCI, USA)

Franco-German study of leukemia incidence in children and adults in several oblasts in Ukraine. (RCRM of the AMS of Ukraine)

International Consortium For Research on the Health Effects of Radiation case-control study of childhood leukemia in Ukraine, Belarus, and Russia.

Ukraine-Belarus-USA study on childhood thyroid cancer. (Institute of Endocrinology and Metabolism, Kiev, Ukraine, NCI, USA)

The Ukrainian/American Chernobyl Ocular Study (UACOS) Preliminary study on the feasibility of case-control studies of

breast cancer among residents of contaminated regions of Belarus, Russia and Ukraine. IARC and ICRHER


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Distribution of the information on the Distribution of the information on the radiological disasters and knowledge radiological disasters and knowledge

on the effects of irradiation is a on the effects of irradiation is a sufficient way of population sufficient way of population

protection and safetyprotection and safety

Global System of the urgent information distribution on radiological accidents

The IT technologies (SuperCourse) Scientific conferences and seminars Educational programs (IAEA, Japan,

USA, Ukraine, Russia)


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We are most grateful to Professor LaPorte and his colleagues for the great opportunity to participate the Symposium

Prof. B.Ledoshchuk and Dr. N.Gudzenko