Magazine article from our research archive:

Declining Use of Mastectomy for Invasive Breast Cancer in Canada, 1981-2000

ABSTRACT

Objective: To evaluate the rate and magnitude of change in surgical practice for breast cancer in Canada in relation to publication dates of clinical trials and consensus conferences.

Methods: Hospital separations with a diagnosis of invasive breast cancer were extracted from the Hospital Morbidity File from 1981 to 2000. Age-standardized rates of in-patient procedures for breast-conserving surgery and mastectomy were analyzed by province and age group and by geographic region.

Results: In Canada, mastectomy rates decreased from 62.2 to 37.9 per 100,000 between 1981 and 2000; declines were largest between 1984 and 1985, following publication of the NSABP B-06 clinical trial in ...

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