Table 3.

Multivariate logistic regression analysis for mortality with Acute Kidney Injury Network stage as the AKI variable

VariableOdds Ratio for Hospital Mortality (95% CI)aP Value
Age (yr)1.10 (1.03–1.18)0.004
ISS1.04 (1.00–1.09)0.08
Percentage TBSA1.03 (1.01–1.06)0.02
AKIN-1b6.75 (0.73–62.48)0.09
AKIN-2b23.70 (2.32–242)0.008
AKIN-3b130 (13.38–>999)<0.001
  • CI, confidence interval; ISS, Injury Severity Score; TBSA = total body surface area burned; AKIN, Acute Kidney Injury Network.

  • 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 Acute Kidney Injury Network criteria.