Responses to a decision aid on prostate cancer screening in primary care practices - Abstract

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< 0.001), with 386 (38%) leaning toward PSA screening versus 436 (43%) before viewing; 174 (17%) unsure versus 319 (32%) before; and 448 (44%) leaning away versus 253 (25%) before. Higher knowledge scores were associated with being more likely to lean against screening and less likely to be unsure (p< 0.001). Among 278 men who also completed a questionnaire after a subsequent clinician visit, participants who planned to discuss PSA screening with their clinicians were significantly more likely to report such discussions than participants who did not (148/217 [68%] vs 16/46 [35%], respectively [p< 0.001]).

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.

Written by:
Barry MJ, Wexler RM, Brackett CD, Sepucha KR, Simmons LH, Gerstein BS, Stringfellow VL, Fowler FJ Jr.   Are you the author?
Informed Medical Decisions Foundation, Boston, Massachusetts; Dartmouth Institute, Dartmouth-Hitchcock Medical Center, Hanover, New Hampshire; Decision Sciences Unit of the General Medicine Division, Massachusetts General Hospital, Boston, Massachusetts.

Reference: Am J Prev Med. 2015 Apr 29. pii: S0749-3797(15)00092-6.
doi: 10.1016/j.amepre.2015.03.002


PubMed Abstract
PMID: 25960395

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