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American women
are more likely to survive breast cancer than their European counterparts
because they are diagnosed earlier, according to an international
team of researchers.
The number
of women with breast cancer surviving more than five years after
diagnosis in the United States is 89 per cent compared to 79 per
cent across Europe as a whole, they reported in the journal Cancer.
Until now,
it has been unclear whether the difference in survival rates might
be attributable to different treatment approaches or better access
in the United States to healthcare.
But the researchers,
analyzing data on more than 17,000 patients, found that a greater
proportion of early-stage tumors were discovered among the U.S.
women.
They reported
that 41 percent of the U.S. cases were diagnosed at an early stage,
compared to just 29 percent in Europe.
Early treatment
of breast cancer, which allows the disease to be treated before
it has a chance to spread to other parts of the body, greatly
improves survival rates.
"These
findings reveal the urgent need to allocate more resources to
ensure earlier diagnosis of breast cancer in Europe," said
Professor Michel Coleman of the London School of Hygiene and Tropical
Medicine.
Other
Sources: Cancer, BBC
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