Copyright 1999 American Medical Association. All Rights Reserved.
Applicable FARS/DFARS Restrictions Apply to Government Use.1999
To the Editor: Drs Antman and Shea1 add to the confusion concerning screening women
aged 40 to 49 years for breast cancer. The Canadian trial2
the authors cite did not have sufficient statistical power to evaluate women
in this age group in the early years of follow-up. Furthermore, the 19 Canadian
women cited in the article already had advanced breast cancer at the time
they were randomized to have mammography, while only 5 with breast cancer
were assigned to the control group.
Kopans DB. Screening Mammography for Women Younger Than 50 Years. JAMA. 1999;282(13):1225–1226. doi:10-1001/pubs.JAMA-ISSN-0098-7484-282-13-jbk1006
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