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©2013 UpToDate ® Print Email Yield of abnormal screening mammograms according to patients' age Number of women without breast cancer for each woman diagnosed with breast cancer among women having an abnormal mammogram when screened for breast cancer. Original source: Carney PA, Miglioretti DL, Yankaskas et al. Individual and combined effects of age, breast density, and hormone replacement therapy use on the accuracy of screening mammography. Ann Intern Med 2003; 138:168. Reproduced with permission from: Fletcher RH, Fletcher SW. Prevention. In: Clinical Epidemiology - The Essentials, 4th ed. Lippincott Williams & Wilkins, Baltimore 2005. Copyright © 2005 Lippincott Williams & Wilkins. file://www.lww.com