Responses to a Decision Aid on Prostate Cancer Screening in Primary Care Practices.

Introduction Prostate-specific antigen (PSA) testing remains controversial, with most guidelines recommending shared decision making. This study describes men's PSA screening preferences before and after viewing a decision aid and relates these preferences to subsequent clinician visit content. Methods Men were recruited from two health systems in 2009–2013. Participants answered a questionnaire before and after decision aid viewing addressing PSA screening preferences and five basic knowledge questions. At one health system, participants also answered a survey after a subsequent clinician visit. Data were analyzed in 2014. Results One thousand forty-one predominantly white, well-educated men responded to the pre- and post-viewing questionnaire (25% and 29% response rates at the two sites). After viewing, the proportion of patients leaning away from PSA screening increased significantly ( p p p Conclusions A decision aid reduces men's interest in PSA screening, particularly among the initially unsure. Men who plan to discuss PSA screening with their clinician after a decision aid are more likely to do so.