High breast cancer rate among British women 'reflects lifestyle'
Steve Connor is the Science Editor of The Independent. He has won many awards for his journalism, including five-times winner of the prestigious British science writers’ award; the David Perlman Award of the American Geophysical Union; twice commended as specialist journalist of the year in the UK Press Awards; UK health journalist of the year and a special merit award of the European School of Oncology for his investigative journalism. He has a degree in zoology from the University of Oxford and has a special interest in genetics and medical science, human evolution and origins, climate change and the environment.
Monday 24 January 2011
Britain has one of the highest rates of breast cancer in the world, ranking 11th out of 50 countries, according to a study that identifies high levels of obesity and alcohol consumption among women as one of the reasons.
Overall, Britain comes 22nd in the ranking for all cancers in both sexes, but women appear to be disproportionately affected – the UK comes 33rd for male cancers and 12th highest for female cancers. However, the analysis by the World Cancer Research Fund (WCRF) shows that rates of cancer overall are still higher in men than in women.
Denmark has the highest ranking, but this may be due to better diagnosis and reporting there (although Danish women do also have high rates of smoking and drinking).
On breast cancer, more women per 100,000 develop the disease in the UK (260.5) than in France (254.9), Italy (251.6), Germany (245.7), Sweden (241.2), Switzerland (236) or Spain (187). The highest rates are in Denmark (325.3), New Zealand (287.1) and Ireland (285.1).
All the rates are age-standardised, which allows a true comparison between countries.
The WCRF, which compiled the rankings from WHO data, said they showed that high-income countries generally have much higher cancer rates than do lower-income ones.
While this may be down to better diagnosis and data collection, high-income countries also have higher rates of obesity, drinking, and lower levels of exercise.
Many cancers are linked to these lifestyle factors, including those of the mouth and larynx, lung, stomach, pancreas, liver, bowel, breast, prostate and kidney. Professor Martin Wiseman, medical and scientific adviser for the WCRF, said: "We know that people in high-income countries are more likely to be overweight, to drink a lot of alcohol, and to be inactive.
"When you look at the list, it is clear that the countries that do worse for these factors tend to be nearer the top," he said.
He added that "The high incidence rates in the UK, Denmark and other high-income countries are not inevitable, and lifestyle changes can make a real difference to people's risk."
Professor Wiseman said that about a third of the most common cancers in the UK could be prevented by maintaining a healthy weight and by good nutrition and exercise.
"Of course, not smoking will have an important effect beyond that, as will avoiding sunburn," he said.
"But the bad news is that around the world things are heading in the wrong direction. The general trend is for people to become more overweight, to eat more high-energy foods and to become less active.
"This is why we need to raise awareness about what people can do to reduce their cancer risk, and as a society we need to make the kind of changes that will make it easier for people to make these healthy choices," Professor Wiseman said.
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