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Worldwide, breast cancer is the most common invasive cancer in women.[note 1] Breast cancer comprises 22.9% of invasive cancers in women[2] and 16% of all female cancers.[3]
In 2008, breast cancer caused 458,503 deaths worldwide, which is 13.7% of cancer deaths in women and 6.0% of all cancer deaths for men and women together.[2] Lung cancer, the second most common cause of cancer-related death in women, caused 12.8% of cancer deaths in women, which is 18.2% of all cancer deaths for men and women together.[2]
The number of cases worldwide has significantly increased since the 1970s, a phenomenon partly attributed to the modern lifestyles.[4][5]
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