As of June 2018, more than 80% of female breast cancers were diagnosed at stages I and II. Less than 5% were diagnosed at stage IV (Canadian Cancer Statistics, 2018). The Canadian Cancer Society attributes this to early detection through organized breast cancer screening programs.
For a history of breast cancer screening as well as a complete list of cancer screening programs in Canada, please consult Organized Breast Screening Programs in Canada – Report on Program Performance in 2005 and 2006, published by the Public Health Agency of Canada.
To find out more information on breast cancer screening: mammography and breast self-examination, please click here.