SUNDAY, June 3, 2012 IS NATIONAL CANCER SURVIVORS DAY - LET'S PRAY FOR CANCER SURVIVORS AND THE CURE OF DISEASE WHEN SAY YOUR PERSONAL PRAYERS EVERYDAY.
Research Studies & Cancer Predicted to Rise 75% by 2030.
Infection, lifestyle tied to which cancer types are most common
in different countries.
The worldwide incidence of cancer is expected to increase 75 percent
by 2030, with a projected increase of more than 90 percent in the poorest
nations, a new study reveals.
Rates of certain types of
cancer (such as cervical and stomach cancer) appear to be declining in some
developing countries, but these reductions are likely to be offset by
substantial increases in the types of cancer associated with a
"westernized" lifestyle, including breast, prostate and colorectal
cancer, according to the report published online May 31 in The Lancet
Oncology.
For the study, researchers
analyzed International Agency for Research on Cancer (IARC) data from 184
countries in 2008 in order to examine how current and future cancer trends vary
between countries based on their levels of development, as measured by their
Human Development Index (HDI).
Currently, countries with a
low HDI (mainly nations in sub-Saharan Africa) have a high incidence of cancers
associated with infection (particularly cervical cancer), as well as liver
cancer, stomach cancer and Kaposi's sarcoma. Countries with a higher HDI (such
as Australia, Brazil, Russia and the United Kingdom) have higher rates of
cancers associated with smoking (lung cancer), reproductive risk factors,
obesity and diet (breast, prostate and colorectal cancer).
Improved living standards
in countries with a lower HDI may lead to a decrease in some infection-related
cancers, but these countries may see a sharp increase in the types of cancer
currently seen in higher-development countries, the researchers pointed out in
a journal news release.
Cancer incidence rates
could increase by 93 percent in low HDI countries by 2030, and by 78 percent in
medium HDI countries (such as South Africa, China and India) over the same
period, according to study leader Dr. Freddie Bray, of IARC, and colleagues.
The investigators also
found that rates of prostate cancer and female breast cancer appear to be
rising in most countries with medium, high or very high levels of development,
and that rates of stomach cancer and cervical cancer are generally decreasing
in countries with medium, high or very high levels of HDI.
Lung cancer is currently
not a leading type of cancer in low HDI countries, but that will change unless
smoking is effectively controlled in these countries, the study authors noted
in the news release.
The researchers also found
that 40 percent of worldwide cancer cases in 2008 occurred in countries with
very high HDI levels, even though they had just 15 percent of the global
population.
More information
(SOURCE: The Lancet
Oncology, news release, May 31, 2012)
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