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  • Contemporary New Zealand coefficients for the Trauma Injury Severity Score: TRISS(NZ)

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    62476_1.pdf (243.9Kb)
    Author(s)
    Schluter, Philip
    Cameron, Cate
    Davey, Tamzyn
    Civil, Ian
    Orchard, Jodie
    Dansey, Rangi
    Hamill, James
    Naylor, Helen
    James, Carolyn
    Dorrian, Jenny
    Christey, Grant
    Pollard, Cliff
    McClure, Rod
    Griffith University Author(s)
    Cameron, Cate M.
    Year published
    2009
    Metadata
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    Abstract
    Aims To develop local contemporary coefficients for the Trauma Injury Severity Score in New Zealand, TRISS(NZ), and to evaluate their performance at predicting survival against the original TRISS coefficients. Methods Retrospective cohort study of adults who sustained a serious traumatic injury, and who survived until presentation at Auckland City, Middlemore, Waikato, or North Shore Hospitals between 2002 and 2006. Coefficients were estimated using ordinary and multilevel mixed-effects logistic regression models. Results 1735 eligible patients were identified, 1672 (96%) injured from a blunt mechanism and 63 (4%) from a ...
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    Aims To develop local contemporary coefficients for the Trauma Injury Severity Score in New Zealand, TRISS(NZ), and to evaluate their performance at predicting survival against the original TRISS coefficients. Methods Retrospective cohort study of adults who sustained a serious traumatic injury, and who survived until presentation at Auckland City, Middlemore, Waikato, or North Shore Hospitals between 2002 and 2006. Coefficients were estimated using ordinary and multilevel mixed-effects logistic regression models. Results 1735 eligible patients were identified, 1672 (96%) injured from a blunt mechanism and 63 (4%) from a penetrating mechanism. For blunt mechanism trauma, 1250 (75%) were male and average age was 38 years (range: 15-94 years). TRISS information was available for 1565 patients of whom 204 (13%) died. Area under the Receiver Operating Characteristic (ROC) curves was 0.901 (95%CI: 0.879-0.923) for the TRISS(NZ) model and 0.890 (95% CI: 0.866-0.913) for TRISS (P<0.001). Insufficient data were available to determine coefficients for penetrating mechanism TRISS(NZ) models. Conclusions Both TRISS models accurately predicted survival for blunt mechanism trauma. However, TRISS(NZ) coefficients were statistically superior to TRISS coefficients. A strong case exists for replacing TRISS coefficients in the New Zealand benchmarking software with these updated TRISS(NZ) estimates.
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    Journal Title
    The New Zealand Medical Journal
    Volume
    122
    Issue
    1302
    Publisher URI
    http://www.nzma.org.nz/journal/122-1302/3774/
    Copyright Statement
    © 2009 New Zealand Medical Association. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Medical and Health Sciences not elsewhere classified
    Medical and Health Sciences
    Publication URI
    http://hdl.handle.net/10072/30489
    Collection
    • Journal articles

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