Is screening mammography effective in elderly women?∗∗∗Access the “Journal Club” discussion of this paper at http://www.elsevier.com/locate/ajmselect/22The analyses upon which this publication is based were performed under Contract number 500-96-P535, entitled “Utilization and Quality Control Peer Review Organization for the State of California,” sponsored by the Health Care Financing Administration (HCFA), Department of Health and Human Services. The content of this publication does not necessarily reflect the views or policies of the Department of Health and Human Services. The authors assume full responsibility for the accuracy and completeness of the ideas presented. This article is a direct result of the Health Care Quality Improvement Program initiated by HCFA, which has encouraged identification of quality improvement projects derived from analysis of patterns of care, and therefore required no special funding on the part of this Contractor.