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Head to head randomized trial of two decision aids for prostate cancer.

Fagerlin A, Holmes-Rovner M, Hofer TP, Rovner D, Alexander SC, Knight SJ, Ling BS, A Tulsky J, Wei JT, Hafez K, Kahn VC, Connochie D, Gingrich J, Ubel PA. Head to head randomized trial of two decision aids for prostate cancer. BMC medical informatics and decision making. 2021 May 12; 21(1):154.

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BACKGROUND: While many studies have tested the impact of a decision aid (DA) compared to not receiving any DA, far fewer have tested how different types of DAs affect key outcomes such as treatment choice, patient-provider communication, or decision process/satisfaction. This study tested the impact of a complex medical oriented DA compared to a more simplistic decision aid designed to encourage shared decision making in men with clinically localized prostate cancer. METHODS: 1028 men at 4 VA hospitals were recruited after a scheduled prostate biopsy. Participants completed baseline measures and were randomized to receive either a simple or complex DA. Participants were men with clinically localized cancer (N? = 285) by biopsy and who completed a baseline survey. Survey measures: baseline (biopsy); immediately prior to seeing the physician for biopsy results (pre- encounter); one week following the physician visit (post-encounter). Outcome measures included treatment preference and treatment received, knowledge, preference for shared decision making, decision making process, and patients'' use and satisfaction with the DA. RESULTS: Participants who received the simple DA had greater interest in shared decision making after reading the DA (p? = 0.03), found the DA more helpful (p''s? < 0.01) and were more likely to be considering watchful waiting (p? = 0.03) compared to those receiving the complex DA at Time 2. While these differences were present before patients saw their urologists, there was no difference between groups in the treatment patients received. CONCLUSIONS: The simple DA led to increased desire for shared decision making and for less aggressive treatment. However, these differences disappeared following the physician visit, which appeared to change patients'' treatment preferences. Trial registration This trial was pre-registered prior to recruitment of participants.

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