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than 50 times), skin cancer (Increased by 3.4 times), and 

 malignant breast tumors (by 4.6 times). 



^jH^F'Malignant tumors were also on the Increase in the 

 digestive tract. However, in recent years they have stabilized 

 and even decreased. 



There was also an increase in the occurrence of blood cancer 

 (first time occurrences were up by 1.2 times, total cases up by 

 2.4 times). However, periods of increase (1974-1975 and 1989- 

 1990) and decrease (1979-1980) were noted. 



Other forms of cancer were observed only occasionally or the 

 occurrence of first cases was stable (cancer of the urogenital 

 organs) or it was decreasing (uterus cancer) against a background 

 of Increasing illnesses. 



Among the various nosological indices, the most unfavorable 

 involved iron deficient anemia in children up to 14 years of age 

 (increases of first occurrence by 4.7 times), neonatal illnesses 

 (up by 2.3 times), including hemolytic disease (up 2.3 times) and 

 birth abnormalities (up 1.8 times). There is also an unfavorable 

 trend in the frequencies of toxicoses in the second half of 

 pregnancies. 



There has been a substantial Increase in the mortality 

 statistics in the region from malignancies: in the whole 

 population it is 6.9 times, in males 9.1, in females 5.2 times. 



In the middle of the 1960s the mortality of men from 

 malignancies exceeded that of women, the values of the elevated 

 mortalities are steadily increasing (1.1 in 1970, 1.5 in 1990). 

 The increase in mortality from oncological illnesses is 

 characteristic of all age groups of the population. Mortality 

 indices in the working age classes of the population increased by 

 3.8 times, in the retired age classes by 6 times and in the 

 children by 18.3 times. 



The leading cause of death in the population of the region 

 with respect to all malignancies is those of organs of the 

 digestive system. The mortality from the above cause gradually 

 increased from 17.7% in 1950 to 64.9% in 1990. Mortality of men 

 from digestive tract malignancies was greater than in women. The 

 main portion of individuals dying of digestive tract malignancies 

 was in the retired age group. 



Malignant cancers of the lungs is the second highest cause 

 of death of the population among the cancer patients, and their 

 portion is gradually increasing. During the period from 1950 to 

 1990, the mortality index increased (from 1.65 to 56.02% or 34 

 times) . The mortality rate in men was higher than in women by 

 3.3-7.2 times. 



There has been a gradual increase in the mortality of women 

 due to breast cancer (from 2.4% to 14.2%). The greatest increase 

 occurred from 1959 to 1970, later the rate decreased slightly. 



Malignancies of the sex organs was an important cause of 

 deaths due to cancer in women of the region (up to 25%) . During 

 1950 through 1965 there was a sharp increase in mortality of 

 women due to the above illness (by 3.4 times). However, in the 

 last 20 years death of working age women due to this cause 

 declined substantially (from 38.3% to 10.7%). In the last 20 

 years there was a 2.4 fold increase in death of men due to cancer 



