The incidence and mortality of breast cancer

Each of the new world of female breast cancer patients found that more than 1.3 million, oh desires of the women in each of 25 ~ 45 million. Breast cancer has become a threat to the health of women a major cancer types. According to the information released by the World Health Organization, in 1982 the world of breast cancer standardized incidence rate of about 11 to 80/10 million, the mortality rate is about 0.7 ~ 28.6/10 million. However, different countries and regions of morbidity and mortality significantly different. China's relatively low level of breast cancer, no significant regions with a high incidence of breast cancer, deaths were distributed state, usually in large cities and the mortality rate higher than that of small and medium-sized cities, urban than rural areas, which may be related fertility, nutrition, and environmental factors .