CMAJ • April 22, 2008; 178 (9). doi:10.1503/cmaj.071154.
© 2008 Canadian Medical Association or its licensors
All editorial matter in CMAJ represents the opinions of the authors and not necessarily those of the Canadian Medical Association.
The OPALS Major Trauma Study: impact of advanced life-support on survival and morbidity
Ian G. Stiell, MD MSc,
Lisa P. Nesbitt, MHA,
William Pickett, PhD,
Douglas Munkley, MD,
Daniel W. Spaite, MD,
Jane Banek, CHIM,
Brian Field, MBA EMCA,
Lorraine Luinstra-Toohey, BScN MHA,
Justin Maloney, MD,
Jon Dreyer, MD,
Marion Lyver, MD,
Tony Campeau, MAEd PhD,
George A. Wells, PhD for the OPALS Study Group
From the Departments of Emergency Medicine (Stiell) and of Epidemiology and Community Medicine (Wells), University of Ottawa, Ottawa, Ont.; the Clinical Epidemiology Program, Ottawa Health Research Institute (Stiell, Nesbitt, Banek, Wells), Ottawa, Ont.; the Department of Emergency Medicine (Pickett), Queen's University, Kingston, Ont.; Greater Niagara Base Hospital (Munkley, Luinstra-Toohey), Niagara Falls, Ont.; the Department of Emergency Medicine (Spaite), University of Arizona, Tucson, Ariz.; Interdev Technologies (Field), Toronto, Ont.; Ottawa Base Hospital Program (Maloney), Ottawa, Ont.; the Division of Emergency Medicine (Dreyer), University of Western Ontario, London, Ont.; the Department of Family Medicine (Lyver), McMaster University, Hamilton, Ont.; and Emergency Health Services (Campeau), Ontario Ministry of Health and Long-Term Care, Toronto, Ont.
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Figure 1: Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) evaluating factors associated with mortality at hospital discharge. Model incorporates study phase and final (hospital) revised trauma score as predictors of mortality. Goodness-of-fit: p > 0.20. *Final assessment of revised trauma score represents value from lead trauma hospital; if missing, the value from the scene was used.  Time from call received to arrival of crew at patient side.
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Figure 2: Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) evaluating factors associated with mortality at hospital discharge. Model incorporates study phase and initial (field) revised trauma score as predictors of mortality. Goodness-of-fit: p > 0.20. *Initial assessment of revised trauma score represents value from the scene; if missing, the value from the lead trauma hospital was used. Time from call received to arrival of crew at patient side.
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Figure 3: Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) evaluating factors associated with mortality at hospital discharge. Model incorporates advanced life-support provided at the scene as predictor of mortality. Goodness-of-fit: p > 0.20. *Initial assessment of revised trauma score represents value from the scene; if missing, the value from the lead trauma hospital was used. Time from call received to arrival of crew at patient side.
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Figure 4: Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) evaluating factors associated with mortality at hospital discharge. Model incorporates advanced life-support interventions as predictors of mortality. Goodness-of-fit: p > 0.20. *Initial assessments of Glasgow Coma Scale score and systolic blood pressure represent values from the scene; if missing, the value from the lead trauma hospital was used. Time from call received to arrival of crew at patient side.
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