Table 4.
Thirty-day risk of all-cause mortality and other adverse outcomes in the discharge subpopulation
| Variable | Events, n/N (%) | Relative Riska (95% Confidence Interval) | P Value | |
|---|---|---|---|---|
| Patients Discharged from the ED | ||||
| AKI | No AKI | |||
| All-cause mortality | 136/6188 (2) | 87/6188 (1) | 1.6 (1.2 to 2.0) | 0.001 |
| Pre-ED CKD stage, eGFR in ml/min per 1.73 m2b | ||||
| ≥60 | 67/3904 (2) | 47/3904 (1) | 1.4 (1.0 to 2.1) | 0.57c |
| 45 to <60 | 34/1054 (3) | 16/1054 (2) | 2.1 (1.2 to 3.8) | |
| 30 to <45 | 16/803 (2) | 13/803 (2) | 1.2 (0.6 to 2.6) | |
| <30d | 19/427 (4) | 11/427 (3) | 1.7 (0.8 to 3.6) | |
| Receipt of hospital-based acute dialysis | 19/6188 (0.3) | 7/6188 (0.1) | 2.7 (1.2 to 6.0) | 0.01 |
ED, emergency department.
a
Patients discharged home from the ED with no AKI served as the referent group.
b
Derived from pre-ED serum creatinine measurements 7–365 days before the ED visit and is reported in ml/min per 1.73 m2.
c
P value for interaction.
d
Patients with an eGFR of 15 to <30 ml/min per 1.73 m2 and those with <15 ml/min per 1.73 m2 (not on dialysis) were combined because of a low number of events.