Statistics of human cancers

Statistics of human cancers (morbidity and mortality).
Information about deaths from tumors derived from materials of medical registration of causes of death that exists in all economically developed countries. Statistics of developing countries are less reliable than the data of the developed countries. Information about the incidence of tumors are collected in a limited number of countries. The main prerequisite for successful development of statistics on the incidence of Acting is the free state or public health care About., by the state or public medical organizations.
In the USSR the account of benign diseases O. included in the accounting of all disease; therefore, he is not particularly accurate. More accurate information about the prevalence of malignant tumors, as in the USSR there is mandatory registration. Notice of patients are referred to the Oncology dispensaries (Oncology clinics clinics, where they are used for the statistic development. In some socialist countries (East Germany, Poland, Hungary and others), there is approximately the same as in the USSR, the system of accounting and statistics of the patients with malignant O.
In some economically developed capitalist countries (Sweden, Denmark, Norway, Finland, England, some US States and others) have special registration centres malignant tumors (cancer registers), which is the account of patients and monitoring of distant results of treatment. For more information on statistics of the Acting person and links them with some climate-geographical and other factors are going to a special expeditions. In the USSR such expeditions were carried out repeatedly by the Institute of Oncology of AMS of the USSR.
The prevalence of visual forms of malignant O. (O. skin, lips, breast, uterus and others) accurately determined morbidity statistics; on the incidence of malignant tumors of internal organs (stomach, lungs, liver, pancreas and other) more accurate information gives statistics of mortality (especially if the number of reported deaths from these O. corrigiruut materials pathoanatomical autopsy). Vivo diagnostics O. these localizations not sufficiently accurate and does not reflect the actual number of diseases them.
Among all causes of death from malignant Acting in the developed capitalist countries (USA, England, Austria, Switzerland, France, Sweden and others), as well as in the USSR, are second, and the number of cases and deaths is increasing gradually. Mortality from malignant O. per 100 000 population was equal to the USSR in 1958-1959 (urban population) v men 128,4 and women 122,9, in the USA in 1956-1957, (white population), respectively 163,2 and 140,9.
Malignant O. affect more often, the population of older age. In the USSR in 1960, per 100 000 urban population of the corresponding sex and age from malignant O. (without malignant blood diseases not included then in the USSR in the number of malignant tumors) died:

in the age of till 30 years among men - 3,9,
among women - 4,0
at the age of 30-39 years among men -29,0,
among women - 33,4
at the age of 40-49 years among men - 140,9,
among women -121,7
at the age of 50-59 years among men - 438,8,
among women 264,0
at the age of 60 years and older among men-1244,9,
among women 685,6

The increase in the population of elderly persons, as well as improvement of diagnostics of malignant Acting are the main reasons of growth of morbidity and mortality from malignant O. If by calculating the standard indicators to eliminate the effect of changes in the age composition on the size of mortality from malignant O., it appears that the mortality from relatively increased slightly, and sometimes dropped. So, in the cities of the USSR from malignant tumors died per 100 000 men in simple indicators to 79.6 in 1940 and 124,5 in 1960 (an increase of 56.5%), and in standardized indicators 138,6 in 1940 and 178,8 in 1960 (an increase of only 29%). In women for the same years simple indicators amounted to 79,7 and 119,6 (an increase of 50%), and standardized -101,3 and 108,9 (an increase of only 7.5%).
Comparison of age-specific mortality from malignant Acting in the cities of the USSR in 1940 and 1960 shows that mortality from among men aged up to 40 years in 1960 was lower than in 1940, aged 40-59 years is slightly higher among women under the age of 60 years, mortality from malignant A. was in 1960 below, than in 1940, the Mortality rate increased only in the age of 60 years, much of which can be attributed to improve medical diagnosis, as during these years has sharply decreased mortality from unspecified causes and management of frailty, which often hides unrecognized cancer. Similar conclusions about the relatively small frequent malignant Acting mainly in old age groups, results and analysis of international statistical materials.
The frequency of malignant O. different locations different. Cancer institutions in the cities of the USSR in 1961 was accounted for 100 000 population 139,2 cancer patients and 8.3 patients sarcoma and other malignant O. (without blood diseases). While stomach cancer was at 29,7% of patients, bronchi, lungs and pleura - with 10.7%, uterus - 13,1%, breast - 6.3% and leather - 12,3% of patients. From malignant tumors in 1960 died in the USSR (the urban population) 121,9 per 100 000 population, one of them from cancer of the digestive system -74,1 (including esophageal - 8,0, stomach - 48,7), cancer of the respiratory organs - 19,5 cancer of the female genital organs - 11,9 from sarcoma or other malignancies - 3,6.
Analysis of the dynamics of the defeat of the Soviet population malignant O. different locations shows that with relatively minor increase Acting almost all localizations the incidence of cancer of the bronchi, lungs and pleura increased significantly. Mortality from cancer of the localization per 100 000 urban population during the 1940 - 1960s increased in men in plain figures from 9.2 to 32,4, in standardized - from 15.1 to 46,1. The increase has occurred in all age groups among men over 30 years and women older than 40 years. Such significant increase of malignant tumors of the respiratory system does not depend on changes in the age composition of the population and improve medical diagnosis, as this improvement in equal measure would in men and women. Meanwhile, the increased frequency of lung cancer in men much more than women. Foreign statistics also confirms the widespread increase of lung cancer, especially among men.