• J Trauma · Aug 2002

    Comparative Study

    Comparing measures of injury severity for use with large databases.

    • Shaun C R Stephenson, John D Langley, and Ian D Civil.
    • Injury Prevention Research Unit, Department of Preventive and Social Medicine, Dunedin School of Medicine, University of Otago, New Zealand. shaun.stephenson@ipru.otago.ac.nz
    • J Trauma. 2002 Aug 1; 53 (2): 326-32.

    BackgroundAfter recent debate about the best measure of anatomic injury severity, this study aimed to compare four measures based on Abbreviated Injury Scale scores derived using ICDMAP-90-the Modified Anatomic Profile (ICD/mAP), Anatomic Profile Score (ICD/APS), Injury Severity Score (ICD/ISS), and New Injury Severity Score (ICD/NISS)-with the International Classification of Diseases-based Injury Severity Score (ICISS).MethodsData were selected from New Zealand public hospital discharges from 1989 to 1998. There were 349,409 patients in the dataset, of whom 3,871 had died. Models were compared in terms of their discrimination and calibration using logistic regression. Age was included as a covariate.ResultsThe ICISS and ICD/mAP were the best performing measures. Adding age significantly improved the discrimination and calibration of almost all the models.ConclusionThe ICISS is a viable alternative to ICDMAP-based measures for coding anatomic injury severity on large datasets.

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