Table 3. In-hospital complications of elderly patients with and without acute kidney injury.
| Complications | Total | Without AKI | With AKI | p1 value | p2 value | |||
|---|---|---|---|---|---|---|---|---|
| Total | Stage 1 | Stage 2 | Stage 3 | |||||
| Any complication (%) | 125 (77) | 67 (68) | 58 (91) | 29 (88) | 14 (93) | 15 (94) | <0.01 | 0.75 |
| Catastrophic events with ICU transfer | 3 (2) | 2 (1) | 1 (2) | 1 (3) | 0 (0) | 0 (0) | 0.85 | 0.84 |
| Hospital-acquired Infections (%) | 40 (25) | 19 (19) | 21 (33) | 11 (33) | 6 (40) | 4 (25) | 0.04 | 0.68 |
| Incident GI bleeding (%) | 81 (50) | 52 (53) | 29 (45) | 15 (45) | 7 (47) | 7 (44) | 0.46 | 0.99 |
| Incident electrolye imbalance (%) | 91 (56) | 39 (39) | 52 (81) | 25 (76) | 12 (80) | 15 (94) | <0.01 | 0.33 |
| dysnatremia (%) | 51 (31) | 16 (16) | 35 (55) | 17 (52) | 6 (40) | 12 (75) | <0.01 | 0.13 |
| dyskalemia (%) | 70 (43) | 35 (35) | 35 (55) | 16 (48) | 10 (67) | 9 (56) | 0.02 | 0.51 |
| dyscalcemia (%) | 6 (4) | 4 (4) | 2 (3) | 0 (0) | 0 (0) | 2 (13) | 0.79 | 0.05 |
| dysphosphatemia (%) | 11 (7) | 5 (5) | 6 (9) | 0 (0) | 2 (13) | 4 (25) | 0.27 | 0.02 |
| dysmagnesemia (%) | 14 (9) | 7 (7) | 7 (11) | 4 (12) | 3 (20) | 0 (0) | 0.37 | 0.2 |
| Hospitalization duration (days) | 15.7 ± 16.4 | 14.1 ± 11.2 | 18.2 ± 22.1 | 14.7 ± 13.7 | 20 ± 13.6 | 23.5 ± 37.3 | 0.11 | 0.4 |
p1 value: Without AKI vs. With AKI, by independent Student’s t-test.
p2 value: Between KDIGO stage 1, stage 2, and stage 3 AKI, by one way ANOVA.
Abbreviations: AKI, acute kidney injury; GI, gastrointestinal; ICU, intensive care unit.