Comparison of Maryland hospital discharge and trauma registry data

Melissa Lee McCarthy, Andrew D. Shore, Tracey Serpi, Melanie Gertner, Lori Demeter

Research output: Contribution to journalArticle


Background: This study aimed to examine the validity of using Maryland hospital discharge data to characterize injuries sustained by trauma patients. Methods: Maryland hospital discharge and Maryland trauma registry data for 1999 were merged, and the extent of agreement regarding the presence and severity of injuries sustained was evaluated. Results: The mean Injury Severity Score was 8.4 according to the Maryland hospital discharge data and 10 according to the Maryland trauma registry data (p < 0.0001). The Maryland hospital discharge data identified 95% or more of all moderate to severe injuries (Abbreviated Injury Score, ≥2) for all body regions except the head. There was substantial agreement between the two data sets for mechanism of injury (weighted kappa, 0.62), the number of preexisting conditions present (weighted kappa, 0.45) and final disposition (weighted kappa, 0.78). Conclusions: The Maryland hospital discharge data are a valid source for documenting the nature and severity of injuries sustained by trauma patients, except for those with a relatively minor head injury.

Original languageEnglish (US)
Pages (from-to)154-161
Number of pages8
JournalJournal of Trauma - Injury, Infection and Critical Care
Issue number1
StatePublished - Jan 1 2005


  • Agreement
  • Hospital discharge
  • Injury severity
  • Trauma
  • Trauma registry

ASJC Scopus subject areas

  • Surgery
  • Critical Care and Intensive Care Medicine

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