Table 4.
Multivariate poisson regression for secondary outcomes
| Multivariate poisson regression analysis | ||||||
|---|---|---|---|---|---|---|
| Group | Patients, number | Events, number | Person-years | IR event/person-year (95% CI) | Crude IRR (95% CI) | Adjusted IRR a (95% CI) |
| A. CKD | ||||||
| No AKI | 92,509 | 649 | 1.7 × 105 | 0.0038 (0.0035, 0.0041) | 1 | 1 |
| AKI | 5,273 | 193 | 4.9 × 103 | 0.0340 (0.0341, 0.0452) | 10.3 (8.8, 12.1) | 7.6 (5.5, 10.4) |
| B. ESRD | ||||||
| No AKI | 92,509 | 116 | 1.7 × 105 | 0.0007 (0.0006, 0.0008) | 1 | 1 |
| AKI | 5,273 | 65 | 5.2 × 103 | 0.0125 (0.0098, 0.0160) | 18.6 (13.7, 25.2) | 22.5 (12.9, 39.1) |
aAdjusted for simplified applied physiology score version III, age, gender and diabetes. CKD, chronic kidney disease; ESRD, end-stage renal disease; AKI, acute kidney injury; IR, incidence rate; IRR, incidence rate ratio.