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What is the worldwide distribution of colorectal cancer?

Colorectal cancer is the cancer of the colon and the rectum i.e. the large intestine. It is also referred to as the colorectal blight or the bowel cancer. Studies have shown that it is the third most popular and death causing cancers in women and the fourth most common and death causing cancer in men. Colorectal cancer is mainly caused due to the abnormal growth of the cells in the inner lining of the colon or the rectum.

There are various risk factors related to the colorectal cancer. These mainly include the age factor, smoking and drinking habits, family history of colorectal cancer, race and gender, obesity and many more.

We know that colorectal cancer is spread worldwide and is very common in almost every country. This article deals with the worldwide distribution of the colorectal cancer. Since the year 1975, the rate of deaths due to colorectal cancer has increased tremendously. From an annual report made for the colorectal cancer it has been seen that the number of men and women suffering from colorectal cancer are almost same with the count of men being approximately 401000 and that of women being 381000. But as seen by the figures the risk of colorectal cancer is more prominent in men than in women.

The threat of colorectal cancer is more in the westernized countries like North America, Australia and New Zealand. The percentage of incident cancer in these countries when combined was found to be 12.6 % in men and 14.1 % in women. In countries like Japan and Miyagi the risk rates of colorectal cancer have grown up to 47 % in women and 92 % in men. Whereas in United State the incidence rate of colorectal have been found to be declining instead of increasing.

An annual study has shown that there have been almost 394000 deaths due to colorectal cancer hence making it the second most common death causing cancers in European countries. But one should remember that this rate is based on the severity of the cancer and progress of the treatment being taken by the colorectal cancer patient. Race also plays a very important role in the growth of colorectal cancer. Studies have shown that Israel people who are born in countries like Europe or United States are at a higher risk of suffering from colorectal cancer. Also African Americans are more prone to colorectal cancer with a percentage of 53 % as compared to other white Americans.

Environment being a major risk factor of colorectal cancer, colorectal cancer is many times referred to as an environmental disease. The environment factor includes components such as social lifestyle, cultural and lifestyle practices. It has been found that approximately 70 % to 80 % of colorectal cancer cases in many countries are due to the environmental factors mentioned above.

The incidence rates per 100000 of colorectal cancer in various countries are as follows:
France- 53.8
Italy- 49.9
United States- 53.48
Czech Republic- 48.23
Canada (Yukon)-48.98
Canada (Nova Scotia)- 47.84
Israel- 46.79
Australia (New South Wales)- 46.92

These statistics have been provided by the International Agency of Research on Cancer (IARC). There are many other countries like Croatia, China, Russia, Netherlands, Belgium, Portugal, Spain, Brazil, Slovakia, Switzerland, Singapore, Denmark etc which are also prone to colorectal cancer and where the incidence rates have been tremendously increasing every year.

Other less colorectal cancer prone countries include India, Colombia, Turkey, Chile, Kuwait, Costa Rice, Malaysia, Peru, Egypt, Pakistan, Zimbabwe, Uganda, Thailand, Oman, Algeria, Bahrain, Ecuador, Peru and Tunisia.

Although colorectal cancer is spread worldwide but it is less common than other cancers like breast cancer.

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