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Cancer on the rise in lower income countries : Study

Cancer on the rise in lower income countries : Study

WASHINGTON: Many low-and middle-income countries have seen cancer rates rise, partially due to increases in risk factors that are typical of Western countries, a new study has found.

Improved screening and detection efforts, combined with decreases in risk factors like smoking, have reduced the incidence and mortality rates from several common types of cancer in many high-income countries, the researchers found.
“This study gives us important clues about the epidemiology of cancer and gives us some ideas about what we could further investigate to improve global public health,” said one of the researchers Lindsey Torre from the American Cancer Society. The increase in many low-and middle-income countries is partially due to increases in risk factors that are typical of Western countries, researchers said.

Worldwide, an estimated 14.1 million new cancer cases and 8.2 million cancer deaths occurred in 2012, they said.

Study data reflected 50 countries selected to represent various regions of the world.
The researchers noted developments across eight major kinds of cancer, which accounts for 60 per cent of total global cases and deaths.

The report detailed trends in breast, prostate, colorectal, lung, esophageal, stomach, liver and cervical cancers.

Cancer is a leading cause of death worldwide in countries of all income levels, and the number of cancer cases and deaths is expected to grow rapidly as populations grow, age, and adopt lifestyle behaviours that increase cancer risk, the researchers said.

The findings were published in the journal Cancer Epidemiology, Biomarkers and Prevention.

The report detailed trends in breast, prostate, colorectal, lung, esophageal, stomach, liver and cervical cancers.

The incidence and mortality of many of these cancers have decreased in high-income countries, but risen in low-and middle-income countries due to factors that may include lifestyle changes and lack of appropriate screening or prevention measures.

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