Epidemiology of Breast Cancer

Breast cancer epidemiology.

The various risk factors for breast cancer have been recognized for many years. A table lists these established breast cancer risk factors together with the approximate magnitude of the increase in risk associated with them. Breast cancer incidence rates increase with age throughout the life span in Western countries, although the rate of increase is greater up to age 50 years than after 50 y...

Epidemiology of female breast cancer

Since the early twentieth century a large evidence and knowledge base of risk factors for breast cancer has developed. The seminal study of breast cancer epidemiology was the Lane–Claypon report in 1926.[1] This study was important not only in the etiology of breast cancer but also in the development of epidemiological methods, being arguably the first systematic case-control study. Before revi...

Epidemiology of male breast cancer.

Breast cancer in men is a rare disease, accounting for approximately 1% of all breast cancer cases. Although the epidemiologic literature regarding female breast cancer is extensive, relatively little is known about the etiology of male breast cancer (MBC). This review is intended to summarize the existing body of evidence on genetic and epidemiologic risk factors for breast cancer in men. Over...

Epidemiology of contralateral breast cancer.

Two to 11% of women diagnosed with breast cancer will develop contralateral breast cancer in their lifetime. Women with a first primary are at a 2-6-fold increased risk of developing contralateral breast cancer compared with the risk in the general population of women developing a first primary cancer. The incidence rate of contralateral breast cancer varies from four to eight per 1000 person-y...

Molecular Epidemiology of Breast Cancer