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- Gabriel E Ryb and Carnell Cooper.
- Program in Trauma, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA. gabyryb@pol.net
- J Natl Med Assoc. 2010 Oct 1;102(10):865-9.
BackgroundA study in the general population has shown a higher acute respiratory distress syndrome (ARDS) mortality among blacks. We studied whether black blunt-trauma patients experience different ARDS incidence, ARDS-associated mortality, or ARDS case fatality rates.MethodsNational Trauma Data Bank (NTDB) extracts of blunt-trauma patients with Injury Severity Score (ISS) greater than 16 and length of stay greater than 3 days were used for this study. ARDS incidence, ARDS-associated mortality, and ARDS case fatality rates were calculated for Caucasians, blacks, and Hispanics, and compared using chi2. In order to adjust for confounders (age, gender, comorbidities, hypotension, and injury severity) multiple logistic regression models were built for the 3 outcomes. Odd ratios (ORs) and 95% confidence intervals (CIs) were calculated. A p < .05 was used for all statistics.ResultsAmong the 96350 patients studied, ARDS incidence, ARDS-associated mortality, and ARDS case fatality rates were 0.92%, 0.18%, and 19.1%, respectively. Differences among racial/ethnic groups were found between blacks and Caucasians for ARDS incidence (0.70% vs. 0.93%) and between Hispanic and Caucasians for ARDS-associated mortality (0.27% vs. 0.17%). Multiple logistic regression models adjusting for confounders, using Caucasian race/ethnicity as a reference, revealed a protective effect of black race/ethnicity for ARDS incidence (OR, 0.73; 95% CI, 0.58-0.91). Hispanics, but not blacks, experienced higher odds of adjusted ARDS-associated mortality (OR, 1.76; 95% CI, 1.15-2.62) and ARDS case fatality (OR, 1.92; 95% CI, 1.17-3.09).ConclusionsBlack race/ethnicity is not associated with ARDS mortality among blunt-trauma patients. Black race/ethnicity seems to have a protective effect in relation to ARDS incidence. Hispanic ethnicity was associated with a higher mortality and case fatality rates for ARDS.
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