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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]
In many developing countries cancer incidence, insofar as this can be measured, appears much lower, most likely because of the higher death rates due to infectious disease or injury. With the increased control over malaria and tuberculosis in some Third World countries, incidence of cancer is expected to rise.
The incidence of breast cancer is rising by around 3% per year, as populations in many countries are getting older. [157] Rates of breast cancer vary across the world, but generally correlate with wealth. [157] Around 1 in 12 women are diagnosed with breast cancer in wealthier countries, compared to 1 in 27 in lower income countries. [156]
An estimated 20 million cases of cancer were diagnosed worldwide in 2022, ... Breast cancer: 670,000. Stomach cancer: 660,000. Lung cancer was also the deadliest cancer in 2020, with a descending ...
The study, which looked at data from 2004 to 2021, found that advanced breast cancer rates have risen among women of all ages, with the sharpest increases in young women aged 20 to 39, and women ...
As seen, breast/prostate cancer, lung cancer and colorectal cancer are responsible for approximately half of cancer incidence. The same applies for cancer mortality, but with lung cancer replacing breast/prostate cancer as the main cause. [citation needed]
One of their recent publications was a 2019 meta-analysis of menopausal hormone therapy and breast cancer risk based on type and timing of therapy. [1] In 2012, the group concluded in a meta-analysis of 117 studies that the incidence of breast cancer was increased by each year younger at menarche and each year older at menopause. [4]
The most common as of 2018 are lung cancer (1.76 million deaths), colorectal cancer (860,000) stomach cancer (780,000), liver cancer (780,000), and breast cancer (620,000). [2] This makes invasive cancer the leading cause of death in the developed world and the second leading in the developing world . [ 25 ]