Research ArticleResponses to a Decision Aid on Prostate Cancer Screening in Primary Care Practices
Introduction
Recent clinical practice guidelines have recommended a shared decision-making approach between clinicians and men considering a prostate-specific antigen (PSA) test for early detection of prostate cancer.1, 2, 3 Even the U.S. Preventive Services Task Force, which recently recommended against routine PSA screening, acknowledged that PSA tests would continue to be offered and requested, and stated that
physicians should not offer or order PSA screening unless they are prepared to engage in shared decision making that enables an informed choice by the patients. Similarly, patients requesting PSA screening should be provided with the opportunity to make informed choices to be screened that reflect their values about specific benefits and harms.4
Yet, others have questioned the practicality of a shared decision-making approach for PSA screening, concerned that it is not commonly done in the busy world of office practice, or that patients would not be swayed by evidence about its pros and cons.5, 6, 7
A network of primary care practices in the U.S. has been working to incorporate a shared decision-making process into the workflow of day-to-day primary care. A patient decision aid on PSA screening was used to facilitate the shared decision-making process at two sites. The purpose of this paper is to report the proportion of patients who wanted PSA screening after being fully informed in a standardized way about the potential benefits and risks, and to describe the relationship between how well informed men are and their leanings about PSA screening. To address concerns that clinicians might override patient preferences regarding PSA screening, we also seek to relate patients’ leanings about PSA screening after viewing a decision aid before a clinician visit to their ratings of the content of the visit afterwards.
Section snippets
Methods
The setting for this study was primary care practices affiliated with two health systems that successfully responded to a request for proposals for decision aid implementation projects funded by the Informed Medical Decisions Foundation. The participating health systems were Dartmouth-Hitchcock Medical Center (DHMC) and Massachusetts General Hospital (MGH). Both systems are academic medical centers, including largely fee-for-service primary care practices with long-established electronic
Results
A total of 1,041 participants returned a pre- and post-viewing questionnaire between November 2009 and April 2013 at the two sites. The response rates to the pre- and post-viewing survey was 586/2,331 (25%) at DHMC and 455/1,564 (29%) at MGH. Table 1 provides the demographic data on the viewers. Almost half of participants were aged 50–59 years, and half had had a prior PSA test. Twenty-six percent were high school graduates or less, whereas 56% were college graduates; participants were
Discussion
Among men prescribed a decision aid as part of routine care addressing PSA screening for early detection of prostate cancer, key knowledge about PSA screening was high, consistent with previous randomized trials of earlier versions of this PSA decision aid.10, 11, 12 Post-viewing, men became less enthusiastic about PSA screening, with most of the shift occurring among men who were not sure about PSA screening beforehand leaning against PSA screening afterward. Moreover, better-informed men, as
Acknowledgments
Financial disclosure: MJB, RW, BG, VS, and FJF receive salary support from the Informed Medical Decisions Foundation, which is now a part of Healthwise, a not-for-profit foundation that develops and distributes patient education and decision support materials. The Foundation co-produced the prostate-specific antigen decision aid used in this study with Health Dialog, and had a royalty relationship with Health Dialog that ended December 31, 2013. MJB, CDB, and KS have received grant support from
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