The impact and utility of encounter patient decision aids: Systematic review, meta-analysis and narrative synthesis.

To determine the effect of encounter patient decision aids (PDAs) as evaluated in randomized controlled trials (RCTs) and conduct a narrative synthesis of non-randomized studies assessing feasibility, utility and their integration into clinical workflows. Databases were systematically searched for RCTs of encounter PDAs to enable the conduct of a meta-analysis. We used a framework analysis approach to conduct a narrative synthesis of non-randomized studies. We included 23 RCTs and 30 non-randomized studies. Encounter PDAs significantly increased knowledge (SMD = 0.42; 95% CI 0.30, 0.55), lowered decisional conflict (SMD= -0.33; 95% CI -0.56, -0.09), increased observational-based assessment of shared decision making (SMD = 0.94; 95% CI 0.40, 1.48) and satisfaction with the decision-making process (OR = 1.78; 95% CI 1.19, 2.66) without increasing visit durations (SMD= -0.06; 95% CI -0.29, 0.16). The narrative synthesis showed that encounter tools have high utility for patients and clinicians, yet important barriers to implementation exist (i.e. time constraints) at the clinical and organizational level. Encounter PDAs have a positive impact on patient-clinician collaboration, despite facing implementation barriers. The potential utility of encounter PDAs requires addressing the systemic and structural barriers that prevent adoption in clinical practice.

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