Table 2.
Thirty-day outcomes of patients discharged home from the emergency department (ED) with AKI
| Outcome | Patients Discharged Home from the ED with AKI, n (%)a | |||
|---|---|---|---|---|
| All Patients (n=6346) | AKI Stageb | |||
| 1 (n=6012) | 2 (n=290) | 3 (n=44) | ||
| All-cause mortality | 149 (2) | 127 (2) | 15 (5) | 7 (16) |
| Receipt of hospital-based acute dialysis | 22 (0.3) | Not reported | ≤5 (≤2) | ≤5 (≤11) |
| At least one hospitalization | 1032 (16) | 956 (16) | 62 (21) | 14 (32) |
| At least one outpatient | ||||
| Physician clinic visitc | 4287 (68) | 4062 (68) | 197 (68) | 28 (64) |
| Serum creatinine test | 1446 (23) | 1339 (22) | 89 (31) | 18 (41) |
| Urine test for proteind | Not reported | 713 (12) | 41 (14) | ≤5 (≤11) |
| Total health care costs, $e | ||||
| Mean (SD) | 3522 (7079) | 3499 (7135) | 3856 (6065) | 4429 (5454) |
| Median (interquartile range) | 1172 (661–3020) | 1164 (657–2955) | 1342 (749–4372) | 1748 (699–6478) |
Reported as n (%) unless otherwise noted. To comply with privacy regulations for minimizing the chance of patient reidentification, numbers of patients were suppressed in five or fewer patients. The total number of patients was not reported if there were other calculations that could result in the reidentification of five or fewer patients.
AKI stage 1, evidence of a relative increase in serum creatinine value of ≥50% to <100% or ≥0.3 mg/dl from baseline; stage 2, evidence of a relative increase in serum creatinine value of ≥100% to <200% from baseline; and stage 3, evidence of a relative increase in serum creatinine value of >200% from baseline or an absolute increase in serum creatinine value to ≥4 mg/dl or the initiation of dialysis.
Seen by any one of the following physicians as outpatient: family medicine, internal medicine, nephrology, or urology.
Urine protein tests included any one of dipstick, protein, or albumin-to-creatinine ratio.
Reported in Canadian dollars, adjusted for inflation to 2013.