Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study finds liver cancer increasing in low risk countries, decreasing in high risk countries

07.10.2011
A new study finds liver cancer incidence rates continue to increase in some low-risk parts of the world such as North America, and are decreasing in some of the highest risk countries of Asia.

Despite this, the incidence rates in Asian countries remain twice as high as those in Africa and more than four times as high as rates in North America. The study will be published in an upcoming issue of Cancer Epidemiology Biomarkers and Prevention and appears early online.

Using data from the International Agency for Research on Cancer, American Cancer Society epidemiologists Melissa M. Center, MPH and Ahmedin Jemal, PhD examined recent trends in liver cancer incidence rates from 1993 to 2002 for 32 cancer registries worldwide. They also examined the male to female rate ratios for these and four additional registries, based on the 1998 incidence data.

They found liver cancer incidence rates for both men and women increased from 1993 to 2002 for eight of the 32 cancer registries considered in the analysis. Increases were largely confined to economically developed countries of Western Europe, North America, and Oceania and may be partly due to increased chronic HCV infection as a result of unscreened blood transfusions and contaminated needles used for medical purposes and with widespread intravenous drug use in previous decades. In contrast, rates decreased in both men and women in five registries including three in Asia. Despite this, incidence rates in Asian countries remain three to four times higher than those in low-risk areas with increasing rates. Male to female rate ratios varied from 0.9 in sub-Saharan African and South American registries to 5.0 (five men for every woman diagnosed) in France and Egypt.

The authors conclude that liver cancer incidence rates continue to increase in some low-risk parts of the world, while they are now decreasing in some of the highest risk countries in Asia. Additional studies looking at causation are needed, they say, to further elucidate factors contributing to these divergent liver cancer incidence trends worldwide.

"We hope our description of international liver cancer incidence trends may stimulate studies to further illustrate etiologic factors associated with these divergent liver cancer incidence trends worldwide," said Ms. Center.

Article: International Trends in Liver Cancer Incidence Rates, Melissa M. Center and Ahmedin Jemal, Cancer Epidemiol Biomarkers Published OnlineFirst September 15, 2011; doi: 10.1158/1055-9965.EPI-11-0643.

David Sampson | EurekAlert!
Further information:
http://www.cancer.org

More articles from Studies and Analyses:

nachricht Smart Data Transformation – Surfing the Big Wave
02.12.2016 | Fraunhofer-Institut für Angewandte Informationstechnik FIT

nachricht Climate change could outpace EPA Lake Champlain protections
18.11.2016 | University of Vermont

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

Im Focus: Fraunhofer ISE Develops Highly Compact, High Frequency DC/DC Converter for Aviation

The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

UTSA study describes new minimally invasive device to treat cancer and other illnesses

02.12.2016 | Medical Engineering

Plasma-zapping process could yield trans fat-free soybean oil product

02.12.2016 | Agricultural and Forestry Science

What do Netflix, Google and planetary systems have in common?

02.12.2016 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>