The Type 1 Diabetes Composite Score: An Innovative Metric for Measuring Patient Care Outcomes Beyond Hemoglobin A(1c)

Patient outcomes resulting from optimal type 1 diabetes (T1D) care have historically focused on driving a single metric, hemoglobin A(1c). Our objectives were to design, build, and launch an aggregate clinical indicator that comprehensively reflects patient management status beyond hemoglobin A(1c) alone. This project aimed to show proof-of-principle that an aggregate score comprised of T1D outcome metrics could be built to track quality performance. METHODS: We established an electronic medical record-based diabetes registry and utilized its population health modules to design and build this diabetes care metric. Elements representing optimal diabetes management, as defined by current guidelines and expert opinion, were identified. Nine elements fall into categories of management tools, care assessments, and complications risk. The Type 1 Diabetes Composite Score (T1DCS) aggregates these outcome measures to reflect the overall diabetes care status for each patient. Higher scores suggest better management and overall improved patient health. RESULTS: We launched this metric build in November 2018 and applied the scoring to our T1D population (≈1,900 patients). The T1DCS quickly provides a summary of current diabetes management status. T1DCS viewed over the registry cohort demonstrates a normal distribution, and scores improved from March to September 2019, reflecting better care and outcomes, and illustrating the potential to track program effectiveness. CONCLUSIONS: The T1DCS is a useful metric to evaluate the clinical status of T1D patients, assess the capability of a clinical program to achieve optimal diabetes outcomes, identify patient diversity opportunities, and document outcome improvement as a novel comprehensive quality measure.