|
|
||||||
JCO Early Release, published online ahead of print Apr 21 2008
Received May 29, 2007 Mammography Before Diagnosis Among Women Age 80 Years and Older With Breast Cancer
From the Departments of Surgical Oncology and Breast Medical Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX. * To whom correspondence should be addressed. E-mail: gvbabiera{at}mdanderson.org
Purpose: Screening mammography guidelines for patients age 80 years and older are variable. We determined the effect of mammography use on stage at breast cancer diagnosis and survival among women of this age range. Patients and Methods: We used the linked Surveillance, Epidemiology, and End Results–Medicare database to evaluate 12,358 women Results: Percentages of women with nonuse, irregular use, and regular use of mammography during the 5 years preceding diagnosis were 49%, 29%, and 22%, respectively. On multivariate analysis, patients were 0.37 times less likely to present with late-stage cancer for each mammogram obtained (odds ratio, 0.63; 95% CI, 0.63 to 0.67). Breast cancer–specific 5-year survival among nonusers was 82%, that among irregular users was 88%, and that among regular users was 94%. However, survival from causes other than breast cancer was also associated with mammography use, suggesting a bias for healthier patients to undergo mammography. Conclusion: Regular mammography among women
|
|
|||||||||||
|
Copyright © 2008 by the American Society of Clinical Oncology, Online ISSN: 1527-7755. Print ISSN: 0732-183X
|