Research Article
Degree of Acute Kidney Injury before Dialysis Initiation and Hospital Mortality in Critically Ill Patients
Table 3
Mortality risk in AKI requiring dialysis patients by degree of severity of kidney injury.
| Groups by severity of injury before dialysis initiation | N | SMR (95% CI) | Odds ratio (95% CI) |
| Overall AKI requiring dialysis | 2,744 | 1.68 (1.60–1.76) | | No creatinine increase before dialysis (Grp IV) | 308 | 0.98 (0.78–1.20) | 0.39 (0.29–0.52) | Group I (0.3 mg/dL to <2 times increase) | 1,006 | 1.40 (1.29–1.52) | Reference | Group II (2 to <3 times increase) | 574 | 1.84 (1.66–2.04) | 1.76 (1.40–2.22) | Group III (>3 times increase) | 856 | 2.25 (2.07–2.45) | 2.20 (1.79–2.71) |
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AKI: acute kidney injury; SMR: standardized mortality rate; 95% CI: 95% confidence intervals.
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