Table 4. Comparison of Elective and Emergency Urology Patients With AKIa .
| Admission Type | Elective | Emergency | P value |
|---|---|---|---|
| Number of patients, No. (%) | 137 (33.4) | 273 (66.6) | - |
| Age, Mean (SD), y | 70.7 (11) | 74.5 (14) | 0.03 |
| Male patients | 70.8% | 84.6% | 0.001 |
| AKI stage, No. (%) | 0.007a | ||
| 1 | 98 (71.5) | 152 (55.7) | |
| 2 | 18 (13.1) | 48 (17.6) | |
| 3 | 21 (15.3) | 73 (26.7) | |
| 30-day mortality, No. (%) | 5 (3.6) | 27 (9.9) | 0.031 |
| Renal recovery at discharge | 44.5% | 64.5% | < 0.001 |
| Median length of stay (IQR) | 7 (8) | 7 (11) | 0.73 |
achi square for trend.