Are Statewide Trauma Registries Comparable? Reaching for a National Trauma Dataset

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Abstract
Statewide trauma registries have proliferated in the last decade, suggesting that information could be aggregated to provide an accurate depiction of serious injury in the United States. To determine whether variability exists in the composition and content of statewide trauma registries, specifically addressing case-acquisition, case-definition (inclusion criteria), and registry-coding conventions. A cross-sectional, two-part survey was administered to managers of all statewide trauma registries. State trauma registrars also provided inclusion and exclusion criteria from their state registry and abstracted a clinical vignette designed to identify coding inconsistencies. Thirty-two states maintain a centralized registry, but requirements for data submission vary significantly. Inclusion and exclusion criteria also vary, particularly for nontraumatic injuries. Coding conventions adopted by states for vague or missing information are dissimilar. When abstractions of the clinical vignette are compared, only 19% and 47% of states provided similar quantity or content for injury e-coding and diagnostic coding, respectively. Injury severity scores (based on diagnostic coding) demonstrated a range from 2 to 18. Statewide trauma registries are prevalent but vary significantly in composition and content. Standardizing inclusion criteria, variable definitions, and coding conventions would greatly enhance the usability of an aggregated, national trauma registry.

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