epidmeology

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Think of the people you know. How many of them have had cancer? How many more will get it? By Satish.D

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The GLOBOCAN 2002 database presents estimates of the incidence and prevalence of and mortality from 27 cancer for all countries in the world in 2002.

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Urbanization, industrialization, changes in lifestyles, population growth and ageing all have contributed for epidemiological transition in the country. The absolute number of new cancer cases is increasing rapidly, due to growth in size of the population, and increase in the proportion of elderly persons as a result of improved life expectancy following control of communicable diseases. In India, the life expectancy at birth has steadily risen from 45 years in 1971 to 62 years in 1991, indicating a shift in demographic profile4. It is estimated that life expectancy of Indian population will increase to 70 years by 2021–25 .

Epidemiology : 

Epidemiology Cancer is a worldwide problem 10.9 million people diagnosed annually 6.7 million people die per year 24.6 million people are currently cancer patients Cancer deaths- 23% 1:5 to 1:6 Deaths *Based on a 5-year Source: IARC, Globocan 2002 prevalence between 1998-2002

The most common cancers worldwide in males : 

The most common cancers worldwide in males males

The most common cancers worldwide in females : 

The most common cancers worldwide in females

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India

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Males

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Females

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Cancer is a leading cause of death worldwide: it accounted for 7.9 million deaths (around 13% of all deaths) in 2007. Lung, stomach, liver, colon and breast cancer cause the most cancer deaths each year. About 30% of cancer deaths can be prevented Tobacco use is the single most important risk factor for cancer.

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lung (1.4 million deaths/year); stomach (866,000 deaths) liver (653,000 deaths) colon (677,000 deaths) breast (548,000 deaths)

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About 80% of all cancer deaths in 2007 occurred in low- and middle-income countries. Deaths from cancer worldwide are projected to continue rising, with an estimated 12 million deaths in 2030.

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The most frequent types of cancer worldwide (in order of the number of global deaths) are: Among men - lung, stomach, liver, colorectal, oesophagus and prostate. Among women - breast, lung, stomach, colorectal and cervical. Cancers that are most often cured are breast, Liver ,Cervix prostate, colon and skin, if they are diagnosed early.

Known Risk Factors for Cancer : 

Known Risk Factors for Cancer Smoking Dietary factors Obesity Exercise Occupation Genetic susceptibility Infectious agents Reproductive factors Socioeconomic status Environmental pollution Ultraviolet light Radiation Prescription Drugs Electromagnetic fields