摘要: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. Screening for prostate cancer with prostate-specific antigen (PSA) is controversial because it is not clear whether regular testing reduces mortality. 1– 5 Therefore, professional organizations recommend informed decisionmaking for PSA testing. 6– 10 To promote educational efforts for informed decisionmaking and to determine screening prevalence, which often relies on selfreported data, investigators need data on the accuracy of self-reports of PSA testing. We hypothesized that the accuracy of self-reports of PSA testing would be high if patients were asked about testing on the same day as their clinic visit. We determined whether any demographic, knowledge, or experience variables predicted accurate self-reports.