Factors predicting prostate specific antigen testing among first-degree relatives of prostate cancer patients.

First-degree relatives (FDRs) of prostate cancer patients are known to be at increased risk for the disease, yet relatively little is known about their screening behaviors. The current lack of consensus about the value of prostate cancer screening underscores the importance of examining why some men at increased risk participate in screening and others do not. In this study, variables from Protection Motivation Theory were used to identify predictors of prostate specific antigen (PSA) testing in this at-risk population.