Race and insurance status as risk factors for trauma mortality

Arch Surg. 2008 Oct;143(10):945-9. doi: 10.1001/archsurg.143.10.945.

Abstract

Objective: To determine the effect of race and insurance status on trauma mortality.

Methods: Review of patients (aged 18-64 years; Injury Severity Score > or = 9) included in the National Trauma Data Bank (2001-2005). African American and Hispanic patients were each compared with white patients and insured patients were compared with uninsured patients. Multiple logistic regression analyses determined differences in survival rates after adjusting for demographics, injury severity (Injury Severity Score and revised Trauma Score), severity of head and/or extremity injury, and injury mechanism.

Results: A total of 429 751 patients met inclusion criteria. African American (n = 72,249) and Hispanic (n = 41,770) patients were less likely to be insured and more likely to sustain penetrating trauma than white patients (n = 262,878). African American and Hispanic patients had higher unadjusted mortality rates (white, 5.7%; African American, 8.2%; Hispanic, 9.1%; P = .05 for African American and Hispanic patients) and an increased adjusted odds ratio (OR) of death compared with white patients (African American OR, 1.17; 95% confidence interval [CI], 1.10-1.23; Hispanic OR, 1.47; 95% CI, 1.39-1.57). Insured patients (47%) had lower crude mortality rates than uninsured patients (4.4% vs 8.6%; P = .05). Insured African American and Hispanic patients had increased mortality rates compared with insured white patients. This effect worsened for uninsured patients across groups (insured African American OR, 1.2; 95% CI, 1.08-1.33; insured Hispanic OR, 1.51; 95% CI, 1.36-1.64; uninsured white OR, 1.55; 95% CI, 1.46-1.64; uninsured African American OR, 1.78; 95% CI, 1.65-1.90; uninsured Hispanic OR, 2.30; 95% CI, 2.13-2.49). The reference group was insured white patients.

Conclusion: Race and insurance status each independently predicts outcome disparities after trauma. African American, Hispanic, and uninsured patients have worse outcomes, but insurance status appears to have the stronger association with mortality after trauma.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • African Americans / statistics & numerical data
  • Age Factors
  • Cause of Death
  • Continental Population Groups / statistics & numerical data*
  • Critical Care / economics
  • Critical Care / standards
  • European Continental Ancestry Group / statistics & numerical data
  • Female
  • Health Services Accessibility / statistics & numerical data
  • Hispanic Americans / statistics & numerical data
  • Humans
  • Injury Severity Score
  • Insurance Coverage / statistics & numerical data*
  • Logistic Models
  • Male
  • Medically Uninsured / statistics & numerical data*
  • Middle Aged
  • Multivariate Analysis
  • Odds Ratio
  • Probability
  • Quality of Health Care
  • Registries
  • Retrospective Studies
  • Risk Factors
  • Sex Factors
  • Socioeconomic Factors
  • Survival Analysis
  • United States
  • Wounds and Injuries / diagnosis
  • Wounds and Injuries / ethnology*
  • Wounds and Injuries / mortality*
  • Wounds and Injuries / therapy