Breast cancer is a malignant tumor that originates in the breast tissues. Most breast cancers are invasive tumors that have grown beyond the ducts or lobules of the breast and can metastasize to other parts of the body through the bloodstream and the lymphatic system. Prolonged exposure to endogenous and exogenous sex hormones, gene mutations, a family history of breast cancer, overweight and obesity, physical inactivity, a sedentary lifestyle, high alcohol consumption, early age at menarche (<12 years), late age at menopause (>55 years), and clinical factors, such as biopsy-confirmed atypical hyperplasia, and having a high breast tissue and bone density are all risk factors for breast cancer.
GlobalData epidemiologists forecast that the number of diagnosed incident cases of breast cancer in women in the 8MM is expected to grow to 1.21 million cases in 2023 at a rate of 4.23% per year during the forecast period. The number of five-year diagnosed prevalent cases in the 8MM is expected to increase by 43.0% over the next decade to 5.12 million cases in 2023.
GlobalDatas forecast is supported by at least 10 years of robust, country-specific historical data obtained from the WHO International Agency for Cancer Researchs (IARCs) SurvCan, the Surveillance of Epidemiology and End Results Program Cancer Statistics Review 1975-2009, EUROCARE-4, research articles published in peer-reviewed journals, and the IARCs Cancer Incidence in Five Continents Plus database, which provided detailed case segmentation by age and sex and is considered the gold standard for international comparison of country-specific data. Another strength of this analysis is that GlobalData epidemiologists compared the incident case projections with the estimates made by country-specific registries and the IARC, and found that the forecast numbers were in accordance with the international estimates.
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