Table 3.

Thirty-day risk of all-cause mortality and other adverse outcomes in the AKI subpopulation

OutcomeEvents, n/N (%)Relative Riska (95% Confidence Interval)P Value
Patients in the ED with AKI
Discharged HomeAdmitted to Hospital
All-cause mortality130/4379 (3)522/4379 (12)0.3 (0.2 to 0.3)<0.001
AKI severity
 Stage 1108/4091 (3)477/4091 (12)0.2 (0.2 to 0.3)<0.001b
 Stage 215/244 (6)38/244 (16)0.4 (0.2 to 0.7)
 Stage 37/44 (16)7/44 (16)1.0 (0.4 to 2.6)
Receipt of hospital-based acute dialysis19/4379 (0.4)33/4379 (0.8)0.6 (0.3 to 1.0)0.06
  • a Patients admitted to hospital from the ED with AKI served as the referent group.

  • b P value for interaction.