Shahid Shafi1, Randall Friese, Larry M Gentilello. 1. Division of Burn, Trauma, and Surgical Critical Care, Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75390-9158, USA. shahid.shafi@utsouthwestern.edu
Abstract
HYPOTHESIS: Similarly designated trauma centers do not achieve similar outcomes. DESIGN: Outcomes study. SETTING: Academic research. PARTICIPANTS: Forty-seven American College of Surgeons-verified level I trauma centers that contributed more than 1000 patients to the National Trauma Data Bank (from January 1999 to December 2003) were identified. MAIN OUTCOME MEASURES: Patients were classified into the following 3 injury severity groups using a combination of anatomical and physiological measures: mild (Injury Severity Score [ISS] of <25 with systolic blood pressure [SBP] of >/=90 mm Hg [n = 184 650]), moderate (ISS of >/=25 with SBP of >/=90 mm Hg or ISS of <25 with SBP of <90 mm Hg [n = 22 586]), and severe (ISS of >/=25 with SBP of <90 mm Hg [n = 4243]). The mean survival for each group was calculated. Individual centers were considered outliers if their patient survival was statistically significantly different from the mean survival for each severity group. RESULTS: The mean survival of patients with mild, moderate, and severe injuries was 99%, 75%, and 35%, respectively. For mild injuries, survival at 5 centers (11%) was significantly worse than that at their counterpart centers. With increasing injury severity, the percentages of outcome disparities increased (15% of centers for moderate injuries and 21% of centers for severe injuries) and persisted in subgroups of patients with head injuries, patients sustaining penetrating injuries, and older (>55 years) individuals. CONCLUSIONS: When treating patients with similar injury severity, similarly designated level I trauma centers may not achieve similar outcomes, suggesting the existence of a quality chasm in trauma care. Trauma center verification may require the use of outcome measures when determining trauma center status.
HYPOTHESIS: Similarly designated trauma centers do not achieve similar outcomes. DESIGN: Outcomes study. SETTING: Academic research. PARTICIPANTS: Forty-seven American College of Surgeons-verified level I trauma centers that contributed more than 1000 patients to the National Trauma Data Bank (from January 1999 to December 2003) were identified. MAIN OUTCOME MEASURES: Patients were classified into the following 3 injury severity groups using a combination of anatomical and physiological measures: mild (Injury Severity Score [ISS] of <25 with systolic blood pressure [SBP] of >/=90 mm Hg [n = 184 650]), moderate (ISS of >/=25 with SBP of >/=90 mm Hg or ISS of <25 with SBP of <90 mm Hg [n = 22 586]), and severe (ISS of >/=25 with SBP of <90 mm Hg [n = 4243]). The mean survival for each group was calculated. Individual centers were considered outliers if their patient survival was statistically significantly different from the mean survival for each severity group. RESULTS: The mean survival of patients with mild, moderate, and severe injuries was 99%, 75%, and 35%, respectively. For mild injuries, survival at 5 centers (11%) was significantly worse than that at their counterpart centers. With increasing injury severity, the percentages of outcome disparities increased (15% of centers for moderate injuries and 21% of centers for severe injuries) and persisted in subgroups of patients with head injuries, patients sustaining penetrating injuries, and older (>55 years) individuals. CONCLUSIONS: When treating patients with similar injury severity, similarly designated level I trauma centers may not achieve similar outcomes, suggesting the existence of a quality chasm in trauma care. Trauma center verification may require the use of outcome measures when determining trauma center status.
Authors: Adil H Haider; Sharon Ong'uti; David T Efron; Tolulope A Oyetunji; Marie L Crandall; Valerie K Scott; Elliott R Haut; Eric B Schneider; Neil R Powe; Lisa A Cooper; Edward E Cornwell Journal: Arch Surg Date: 2011-09-19
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