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Obesity does not affect mortality after trauma.

Rodrigo F Alban1, Sergey Lyass, Daniel R Margulies

  • 1Burns and Allen Research Institute, Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA.

The American Surgeon
|October 25, 2006
PubMed
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Obesity does not appear to increase adverse outcomes in trauma patients. This study found no significant difference in mortality or complications between obese and nonobese trauma patients, challenging previous assumptions.

Area of Science:

  • Trauma Surgery
  • Critical Care Medicine
  • Obesity Research

Background:

  • Conflicting evidence exists regarding obesity as a risk factor for adverse outcomes post-trauma.
  • Understanding the impact of obesity on trauma patient outcomes is crucial for clinical management.

Purpose of the Study:

  • To compare outcomes between obese and nonobese patients following trauma.
  • To determine if body mass index (BMI) influences mortality and complications in trauma survivors.

Main Methods:

  • Retrospective analysis of 918 trauma patients admitted to a Level I trauma center (1999-2002).
  • Comparison of demographic data, injury severity score (ISS), APACHE II scores, hospital/ICU stay, complications, and mortality between obese (BMI ≥ 30) and nonobese (BMI ≤ 29) groups.
  • Logistic regression analysis to identify predictors of mortality.

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Main Results:

  • Obese patients had a longer intensive care unit (ICU) stay (6.8 vs. 4.8 days, P=0.04).
  • No significant differences were observed in overall mortality (5.9% obese vs. 8.0% nonobese, P=0.48), mortality by injury mechanism, or common complications.
  • Logistic regression indicated age, ISS, and APACHE II scores, but not BMI, were associated with mortality.

Conclusions:

  • Obesity is not identified as a risk factor for adverse outcomes in blunt or penetrating trauma.
  • Further research is needed to reconcile discrepant findings across different trauma centers regarding obesity and trauma outcomes.