Clinical Study
Factors Affecting Inpatient Mortality in Elderly People with Acute Kidney Injury
Table 1
Descriptive characteristics of study population (
).
| | | Total | Survived, (67.1%) | Died, (32.9%) | value |
| | Age | | | | | | 65–80 years | 348 (80.7%) | 231 (79.9%) | 117 (82.4%) | 0.61 | | >80 years | 83 (19.3%) | 58 (20.1%) | 25 (17.6%) | | | Length of stay, days, median | 4 | | | | | Diabetes | 133 (30.9%) | 94 (70.7%) | 39 (29.3%) | 0.32 | | Hypertension | 228 (55.9%) | 163 (71.5%) | 65 (28.5%) | 0.055 | | Admission Cr, median | 2.1 | 2.2 | 2 | 0.02 | | Peak Cr | 2.8 | 2.7 | 3 | 0.054 | | Discharge Cr | 1.8 | 1.5 | 2.7 | <0.001 | | pH | 7.3 ± 0.29 | 7.3 ± 0.36 | 7.3 ± 0.13 | 0.99 | | O2 | 81.6 ± 21.7 | 81.6 ± 21.2 | 81.5 ± 22.7 | 0.98 | | pCO₂ | 34 ± 15.2 | 33.9 ± 15.2 | 15.3 ± 1.6 | 0.95 | | Albumin, | | | | | | <3.5 | 260 (92.9%) | 162 (91.5%) | 98 (95.1%) | 0.33 | | >3.5 | 20 (7.1%) | 15 (8.5%) | 5 (4.9%) | | | HCO3, | | | | | | <21 | 156 (69.6) | 92 (68.1) | 64 (71.9) | 0.65 | | >21 | 68 (30.4) | 43 (31.9) | 25 (28.1) | | | HCO3, median | 18 | 18 | 17 | 0.12 | | Need for dialysis | 20 (4.5) | 11 (3.7) | 9 (6.2) | 0.23 | | Ventilation | 32 (7.2) | 15 (5) | 17 (11.6) | 0.01 | | Vasopressor | 56 (12.6) | 15 (5) | 41 (28.1) | <0.001 | | Stay in ICU | 25 (5.6) | 10 (3.3) | 15 (10.3) | 0.004 | | Oliguria | 63 (14.2) | 31 (10.4) | 32 (21.9) | 0.001 | | AKI stage 1 | 341 (79.1%) | 241 (70.7%) | 100 (29.3%) | NS | | AKI stage 2 | 56 (13%) | 31 (55.4%) | 25 (44.6%) | NS | | AKI stage 3 | 34 (7.9%) | 17 (50%) | 17 (50%) | NS |
| | Outcome | | | | | | Survived | 299 (67.1) | | | | | Died | 146 (32.9) | | | |
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