Table 4.
Comparison of elderly patients with AKI who died and who survived
| Elderly AKI (n=1354) | Patients who died (n=255) | Patients who survived (n=1099) | P value | |
| Age | 73.46±8.17 | 75.65±8.41 | 72.84±8.04 | <0.001 |
| Gender | 0.816 | |||
| Male | 841 (62.1%) | 160 (62.7%) | 681 (62%) | |
| Female | 513 (37.9%) | 95 (37.3%) | 418 (38%) | |
| Hypertension | 618 (45.6%) | 121 (47.5%) | 497 (45.2%) | 0.290 |
| CVD | 227 (16.8%) | 61 (23.9%) | 166 (15.1%) | 0.001 |
| DM | 169 (12.5%) | 29 (11.4%) | 140 (12.7%) | 0.611 |
| CKD | 128 (9.5%) | 15 (5.9%) | 113 (10.3%) | 0.031 |
| Cancer | 218 (16.1%) | 69 (27.1%) | 149 (13.6%) | <0.001 |
| MODS | 281 (20.8%) | 99 (38.8%) | 182 (16.6%) | <0.001 |
| Number of failed organs | <0.001 | |||
| 2 | 230 (17.0%) | 68 (29.6%) | 162 (70.4%) | |
| 3 | 38 (2.8%) | 20 (52.6%) | 18 (47.4%) | |
| 4 | 8 (0.6%) | 6 (75.0%) | 2 (25.0%) | |
| 5 | 5 (0.4%) | 5 (100%) | 0 | |
| ICU admission | 337 (24.9%) | 73 (28.6%) | 264 (20.8%) | 0.006 |
| ICU LOS | 2.89 (0–87) | 3.16 (0–67) | 2.75 (0–87) | 0.095 |
| Dialysis | 138 (10.2%) | 18 (7.1%) | 120 (10.9%) | 0.066 |
| MV | 43 (3.2%) | 21 (8.2%) | 22 (2.0%) | 0.001 |
| AKI stage | 0.001 | |||
| 1 | 434 (32.1%) | 106 (24.4%) | 328 (75.6%) | |
| 2 | 416 (30.7%) | 57 (13.7%) | 359 (86.3%) | |
| 3 | 504 (37.2%) | 92 (18.3%) | 412 (81.7%) | |
| AKI classification | 0.047 | |||
| CA-AKI | 644 (47.6%) | 107 (16.6%) | 537 (83.4%) | |
| HA-AKI | 710 (52.4%) | 148 (20.8%) | 562 (79.2%) | |
AKI, acute kidney injury; CA-AKI, community–acquired AKI; CKD, chronic kidney disease; CVD, cardiovascular disease; DM, diabetes; HA-AKI, hospital-acquired AKI; LOS, length of stay; MODS, multiple organ dysfunction syndrome; MV, mechanical ventilation.