Prostate cancer (PCa) is the leading cancer diagnosis among men and the second leading cause o male cancer death. However, screening asymptomatic men remains controversial, as early diagnosis an treatment of PCa has not yet demonstrated reduced disease-related mortality in a randomized trial. The goal of the current study is to develop and assess widely accessible, easily disseminable methods to assist men in making informed decisions about PCa screening. We will compare the efficacy of a new web-based interactive decision support approach to our existing print-based PCa screening decision tool, among diverse sample of male primary care patients. Abundant evidence documents the expanding role of the Internet in increasing access to and understanding of health information and the need for systematic evaluations of Internet-based interventions. A novel aspect of the proposed trial will be our focus on cognitive biases as a factor that has limited the success of previous information-based interventions. Specifically, w will evaluate: 1) confirmation bias and 2) short-term consequences bias. In Phase I (months 1-8) of this five-year project, we will develop an interactive, Internet-based patient information and decision aid. In Phase II (months 9-60), we will evaluate the impact of this decision aid in a randomized controlled trial with male primary care patients aged 45-70 from two Washington D area hospitals (N = 1875). Trial arms include: 1) print-based information and decision aid (Print), 2) web based information plus interactive decision aid (Web), and 3) usual care (UC). Subjects will complete outcome assessments at baseline, one- and 13-months post-baseline.
The specific aims are to: 1. Evaluate the impact of the delivery method (Web vs. Print vs. Usual Care) on the key patient outcome variables o knowledge, decisional satisfaction, and the screening decision. 2. Identify factors that moderate the interventions'impact on the primary outcomes. 3. Identify the mechanisms by which the interventions impact knowledge and decisional satisfaction. In exploratory analyses, we will evaluate factors that are related t use of the web and print materials. This research has the potential to make several significant and innovative contributions: 1) the development and evaluation of a widely-disseminable method of educating heterogeneous group of patients about a controversial topic, which can be adapted for other similarly contentious issues, 2) a determination of whether Web based materials are a feasible method of patient education for this age cohort, compared to print materials, 3) an understanding of cognitive factors that ma hinder comprehension of a controversial medical decision, 4) a determination of who among the target population benefits the most from a web-based intervention, and 5) the information required to streamline and target future web-based educational interventions.

National Institute of Health (NIH)
National Cancer Institute (NCI)
Research Project (R01)
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Community-Level Health Promotion Study Section (CLHP)
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Shaikh, Abdul R
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Georgetown University
Internal Medicine/Medicine
Schools of Medicine
United States
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Starosta, Amy J; Luta, George; Tomko, Catherine A et al. (2015) Baseline Attitudes About Prostate Cancer Screening Moderate the Impact of Decision Aids on Screening Rates. Ann Behav Med 49:762-8
Tomko, Catherine; Davis, Kimberly M; Luta, George et al. (2015) A comparison of web-based versus print-based decision AIDS for prostate cancer screening: participants' evaluation and utilization. J Gen Intern Med 30:33-42
Tomko, Catherine; Davis, Kimberly; Ludin, Samantha et al. (2015) Decisional outcomes following use of an interactive web-based decision aid for prostate cancer screening. Transl Behav Med 5:189-97
Taylor, Kathryn L; Williams, Randi M; Davis, Kimberly et al. (2013) Decision making in prostate cancer screening using decision aids vs usual care: a randomized clinical trial. JAMA Intern Med 173:1704-12
Davis, Kimberly; Haisfield, Lisa; Dorfman, Caroline et al. (2011) Physicians' attitudes about shared decision making for prostate cancer screening. Fam Med 43:260-6
Dorfman, Caroline S; Williams, Randi M; Kassan, Elisabeth C et al. (2010) The development of a web- and a print-based decision aid for prostate cancer screening. BMC Med Inform Decis Mak 10:12