The trial by Mullan and colleagues1 highlights the difficulty of designing, implementing, and evaluating a patient-centered and physician-implemented decision aid, particularly in the context of managing a chronic illness such as diabetes mellitus.1 The concept of patient-centered care has undeniable appeal and broad support.2 Less clear is the real-world effectiveness of patient-centered decision aids in improving measurable outcomes and what those measures should be.
Crittenden DB, Shah NR. Metrics for Evaluating the Utility of Patient-Centered Decision Tools. Arch Intern Med. 2010;170(5):496-497. doi:10.1001/archinternmed.2010.23