Pan-Canadian Study of Mammography Screening and Mortality from Breast Cancer

Abstract

Participation in mammography screening programs in Canada was associated with substantially reduced breast cancer mortality.

Is Clinical Breast Examination Important for Breast Cancer Detection?

“…That decrease is in part a result of improvement in treatments and the implementation of screening programs. Indeed, compared with control subjects, women invited to screening had a 20% relative risk reduction for breast cancer mortality [2][3][4] .…”

Breast Cancer Screening Panels Continue to Confuse the Facts and Inject Their Own Biases

“…In addition to the randomized controlled trials 5,12 , numerous observational studies show a marked decline in breast cancer deaths for women screened in their 40s [13][14][15][16][17][18] . The data are equally as strong (if not stronger) for women 40-49 years of age as for older women, and women in their 40s have more years of life to lose.…”

“…On the other hand, numerous studies show that screening results in declining deaths [14][15][16][17][18][19][27][28][29][30][31][32][33][34][35] , separate from access to therapy.…”

Factors related to non-adherence to mammography in a city of the Brazilian Amazonian area: A population-based study

“…[6][7][8] On the other hand, in regions with large scale screening programs a reduction in breast cancer mortality ranging from 15 to 30% has been reported. 7,9,10 Adherence to mammography-based screening, in turn, suffers multifactorial influences, such as cultural, social and economic issues, public knowledge about the disease and the examination, and the provision of mammography exams in the public and private sectors. [11][12][13][14] Despite the control of breast cancer having been included among the priorities of the Brazilian Health Pact, 15 the estimated mammography coverage obtained via household surveys shows insufficient and unequal screening in Brazilian regions.…”