Participants attend 1-2 monthly peer educator-led education sessions about PCA genetic testing over 3 hours each for 18 months.

Participants receive mailed informational materials about PCA risk, family history, and genetic testing.

Receive prostate cancer educational materials

Will be assessed by the 4-item Sure of myself; Understand information; Risk-benefit ratio; Encouragement (SURE) scale. To compute a summary decisional conflict score, the Likert-scaled responses will be averaged across the SURE item responses provided by a subject completing at least 2 of the 4 questions. The change in decisional conflict scores between baseline and endpoint at 2-months will be calculated and group means for these changes compared between subjects randomized to receive control materials vs. those randomized to receive the peer health education intervention (i.e., by intention to treat). The significance of the difference will be evaluated at the 0.05 level using a two-sided Student's t-test. The assumptions for this test will be carefully evaluated. If the changes are substantially skewed, they will be summarized with group medians and evaluated for significant differences by the nonparametric Wilcoxon's rank sum test.

Will be summarized in tables with descriptive statistics or graphically in data plots at each time they are assessed along with changes in responses over time. Will investigate imbalances in these data for potential confounding of primary and exploratory endpoint analyses and investigate disparities and intervention effect modification in various subgroups of subjects.

Will be summarized in tables with descriptive statistics or graphically in data plots at each time they are assessed along with changes in responses over time.

Will be summarized in tables with descriptive statistics or graphically in data plots at each time they are assessed along with changes in responses over time.