• Garth H Rauscher, Jenna A Khan, Michael L Berbaum, and Emily F Conant.
• Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, IL 60612, USA. garthr@uic.edu
• Ann Epidemiol. 2013 Apr 1;23(4):210-4.

PurposeWe examined whether quality of mammography interpretation as performed by the original reading radiologist varied by patient sociodemographic characteristics.MethodsFor 149 patients residing in Chicago and diagnosed in 2005-2008, we obtained the original index mammogram that detected the breast cancer and at least one prior mammogram that did not detect the cancer performed within 2 years of the index mammogram. A single breast imaging specialist performed a blinded review of the prior mammogram. Potentially missed detection (PMD) was defined as an actionable lesion seen during a blinded review of the prior mammogram that was in the same quadrant as the cancer on the index mammogram.ResultsOf 149 prior mammograms originally read as nonmalignant, 46% (N = 68) had a potentially detectable lesion. In unadjusted analyses, PMD was greater among minority patients (54% vs. 39%, P = .07) and for patients with incomes below $30,000 (65% vs. 36%, P < .01), less education (58% vs. 39%, P = .02), and lacking private health insurance (63% vs. 40%, P = .02). Likelihood ratio tests for the inclusion of socioeconomic variables in multivariable logistic regression models were highly significant (P ≤ .02).ConclusionsDisadvantaged socioeconomic status appears to be associated with PMD of breast cancer at mammography screening.Copyright © 2013 Elsevier Inc. All rights reserved.

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