Table 5.
Results of multilevel logistic regression for AKI progression
| Parameter | Odds Ratio | 95% CI | P Value | |
|---|---|---|---|---|
| Lower | Upper | |||
| Intervention (reference = control period) | 0.94 | 0.80 | 1.10 | 0.41 |
| Time (linear trend) | 1.00 | 0.90 | 1.11 | 0.99 |
| Season (reference = spring) | ||||
| Summer | 0.99 | 0.89 | 1.10 | 0.86 |
| Autumn | 1.00 | 0.87 | 1.14 | 0.95 |
| Winter | 1.03 | 0.94 | 1.13 | 0.58 |
| Age group (reference =80+), yr | ||||
| 18–34 | 0.93 | 0.76 | 1.13 | 0.45 |
| 35–49 | 1.27 | 1.08 | 1.48 | 0.003 |
| 50–64 | 1.20 | 1.08 | 1.34 | 0.001 |
| 65–79 | 1.19 | 1.09 | 1.30 | <0.001 |
| Sex (reference = men) | 0.83 | 0.77 | 0.90 | <0.001 |
| Charlson comorbidity score (reference =0) | ||||
| 1 | 1.18 | 1.03 | 1.36 | 0.02 |
| 2 | 1.58 | 1.38 | 1.81 | <0.001 |
| 3 | 1.85 | 1.60 | 2.14 | <0.001 |
| 4 | 2.30 | 1.98 | 2.68 | <0.001 |
| 5+ | 2.32 | 2.03 | 2.66 | <0.001 |
| Hospital-acquired AKI (reference = community acquired) | 0.96 | 0.89 | 1.03 | 0.26 |
AKI progression was defined as AKI stage 1 or 2 that worsened to a higher stage of AKI. The period in which the hospitals were exposed to the intervention compared with the control (reference) period is shown in the first row. Cluster (hospital) was also included in the model. 95% CI, 95% confidence interval.