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Journal Article

Citation

Clark DE, Ahmad S. Inj. Prev. 2006; 12(2): 111-116.

Affiliation

Department of Surgery, Maine Medical Center, Portland, ME, USA.

Copyright

(Copyright © 2006, BMJ Publishing Group)

DOI

10.1136/ip.2005.010058

PMID

16595426

PMCID

PMC2564435

Abstract

OBJECTIVE: To determine whether the Barell matrix (Inj Prev 2002;8:91-6) could effectively categorize injuries by severity. METHODS: Injury diagnoses of cases in the 2002 US Nationwide Inpatient Sample were classified according to the Barell matrix. For each cell of the matrix, the authors used ICDMAP-90 to determine the predominant Abbreviated Injury Score (AIS) and body region, and calculated the weighted proportion surviving (bPScell) among patients with any diagnosis in that cell. These findings were used to estimate maximum AIS (bAISmax), ISS (bISS), and the minimum or product of bPScell (bPSmin, bPSprod) for injured patients in the 1996-2000 US National Hospital Discharge Surveys. Case survival was determined for different scores, and outcome models using age, sex, comorbidity, mechanism, and bISS or bPSmin were compared to models using ISS calculated from ICDMAP-90 (mISS) or using ICISS. RESULTS: Case survival decreased with increasing bAISmax or bISS; survival was closely approximated by bPSmin, and also increased monotonically with bPSprod. Outcome models using bISS or bPSmin were similar to those using mISS or ICISS. An Abbreviated Barell Categorization, with only four groups, was also effective. CONCLUSION: Barell matrix categorization of administrative data allows severity scoring similar to that obtainable with ICDMAP-90 or ICISS.


Language: en

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