In countries with a westernised
lifestyle about half of all deaths are caused by circulatory disease and
a quarter by cancer. Cancer is an important problem in both public health
and terms worldwide, irrespective of a country's development. The most
recent estimates of the global cancer burden suggest that there were 8.1
million new cases, excluding The numbers of new cases of colorectal cancer
worldwide has increased rapidly since 1985 melanoma skin cancer, worldwide
in 2000. About 10 million new cases are now diagnosed each year.
Colorectal cancer is the fourth commonest form of cancer occurring worldwide,
with an estimated 783 000 new cases diagnosed in 2000, the most recent
year for which international 600 estimates are available. It affects men
and women almost Men equally, with about 401 000 new cases in men annually
and Women
381000 in women. The number
of new cases of colorectal 500
cancer worldwide has been
increasing rapidly since 1975 (when it was 500 000).
Worldwide, colorectal cancer
represents 9.4% of all incidents of cancer in men and 10.1% in women. Colorectal
cancer, however, is not equally common throughout the world. If the westernised
countries (North America; those in northern, 300
southern, and western Europe;
Australasia; and New Zealand) are combined, colorectal cancer represents
12.6% of all incident cancer in westernised countries in men and 14.1%
in women. 200
Elsewhere colorectal cancer
represents 7.7% and 7.9% of all incident cases in men and women respectively.
Large differences exist
in survival, according to the stage of 100 disease. It is estimated that
394 000 deaths from colorectal cancer still occur worldwide annually, and
colorectal cancer is the second commonest cause of death from any cancer
in men.
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