Incidence of Breast Cancer
Globally, breast cancer is one of the most common cancers that affects more women than any other type of cancer and is the leading cause of cancer-related deaths among females. accounting for 23 % of all cancer cases and 14% of the cancer deaths all over the world. (Ferlay et al., 2010)
Global breast cancer incidence increased from 641,000 (95% confidence intervals 610,000— 750,000) cases in 1980 to 1,643,000 (1,421,000—1,782,000) cases in 2010, an annual rate of increase of 3·1% . For women aged 15—49 years, twice as many breast cancer cases were recorded in developing countries than in developed countries.
According to the reports, breast cancers have badly attacked women population in India. A survey carried out by Indian Council of Medical Research (ICMR) in the metropolitan cities viz. Delhi, Mumbai, Bangalore and Chennai; from 1982 to 2005; has shown that the incidences of breast cancer have doubled.
Over the years, the incidences of breast cancer in India have steadily increased and as many as 100,000 new patients are being detected every year (Yip et al., 2006).
A 12% increase has been registered by cancer registries from 1985 to 2001, which represented 57% rise of cancer burden in India. (Hadjiiski et al., 2006)
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