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Evelyn C. Y. Chan, MD, Sally W. Vernon, PhD, Chul Ahn, PhD and Anthony Greisinger, PhD

Evelyn C. Y. Chan and Chul Ahn are with the Division of General Internal Medicine, University of Texas–Houston Medical School. Sally W. Vernon is with the Center for Health Promotion and Prevention Research, University of Texas–Houston School of Public Health. Anthony Greisinger is with Kelsey Research Foundation and Kelsey-Seybold Clinic, Houston, Tex.

Correspondence: Requests for reprints should be sent to Evelyn C. Y. Chan, MD, Biomedical Ethics, Division of General Internal Medicine, University of Texas–Houston Medical School, 6431 Fannin, 1.122 MSB, Houston, TX 77030 (e-mail: evelyn.c.chan{at}uth.tmc.edu).

This study determined the accuracy of self-reports of prostatespecific antigen (PSA) testing. Men (N = 402) attending 2 outpatient clinics were asked: "Did you have a PSA test today?" and their medical records were checked. Concordance, sensitivity, and false-negative values were 65%, 67%, and 33%, respectively, at 1 clinic site and 88%, 64%, and 36% at the other. The accuracy of self-reports of PSA testing should be interpreted with caution.