Evaluation of Measure Dx, a Resource to Accelerate Diagnostic Safety Learning and Improvement.

Background: Several strategies have been developed to detect diagnostic errors for organizational learning and improvement. However, few health care organizations (HCOs) have integrated these strategies into routine operations. To address this gap, the Agency for Healthcare Research and Quality released "Measure Dx: A Resource To Identify, Analyze, and Learn From Diagnostic Safety Events" in 2022.

Objective: We conducted an evaluation of Measure Dx to measure feasibility of implementation and effects on short-term and intermediate outcomes related to diagnostic safety.

Design: Prospective observational study.

Participants: Teams from 11 HCOs, primarily academic medical centers.

Interventions: Participants were asked to use Measure Dx over approximately 6 months and attend monthly virtual learning collaborative sessions to share and discuss approaches to measuring diagnostic safety.

Main measures: Descriptive outcomes were gathered at the HCO level and included uptake of different case-finding strategies and the number of cases reviewed and confirmed to have diagnostic safety improvement opportunities. We collected information on organizational practices related to diagnostic safety at each HCO at baseline and at the conclusion of the project.

Key results: The 11 HCOs completed all requirements for the evaluation. Each of the four diagnostic safety case finding strategies outlined in Measure Dx were used by at least three HCOs. Across the cohort, participants reviewed 703 cases using a standardized data collection instrument. Of those cases, 224 (31.8%) were identified as diagnostic safety events with improvement opportunities. Unexpectedly, self-ratings on the checklist assessment declined for several organizations.

Conclusions: Use of Measure Dx can help accelerate implementation of systematic approaches to diagnostic error measurement and learning across a variety of HCOs, while potentially enabling HCOs to identify opportunities to improve diagnostic safety practices.