Table 5.

Multivariate logistic regression analysis for mortality with RIFLE as the AKI variable

VariableOdds Ratio for Hospital Mortality (95% CI)aP Value
Age (yr)1.09 (1.02–1.16)0.009
ISS1.04 (1.00–1.08)0.08
Percentage TBSA1.03 (1.01–1.06)0.007
Riskb15.34 (1.75–134)0.01
Injuryb46.28 (5.02–427)<0.001
Failureb126 (13.39–>999)<0.001
  • CI, confidence interval; ISS, Injury Severity Score; TBSA, total body surface area burned.

  • a Odds ratios for age, ISS, and percentage TBSA reflect per-year increase in age, per–1-point increase in score, and per 1% increase in percentage TBSA, respectively.

  • b Compared with no AKI by RIFLE (Risk-Injury-Failure-Loss-End Stage) criteria.