Table 4.
Subgroup analysis of patients with high and low UO/FI ratios
| Subgroup with UO/FI ≤ 0.5 (Model A, n = 421) | Subgroup with UO/FI > 0.5 (Model B, n = 414) | ||||
|---|---|---|---|---|---|
| Variables | Adjusted odds ratio (95% CI) | P | Variables | Adjusted odds ratio (95% CI) | P |
| UO | 0.97 (0.96–0.99) | 0.006 | UO | 0.99 (0.98–1.00) | 0.504 |
| Low tidal volume intervention | 0.80 (0.53–1.20) | 0.295 | Low tidal volume intervention | 0.57 (0.36–0.88) | 0.013 |
| Leukemia | 5.83 (1.17–29.1) | 0.031 | Leukemia | 1.92 (0.35–10.39) | 0.447 |
| Solid tumour | 2.15 (0.42–10.82) | 0.351 | Solid tumour | 4.21 (1.00–17.50) | 0.048 |
| Respiratory rate | 1.01 (0.99–1.03) | 0.165 | Respiratory rate | 1.02 (1.00–1.04) | 0.034 |
| Platelet count (10^9/L) | 0.99 (0.99–1.00) | 0.161 | Platelet count (10^9/L) | 0.99 (0.99–0.99) | 0.032 |
| PaO2/FiO2 | 0.99 (0.99–0.99) | 0.039 | PaO2/FiO2 | 0.99 (0.99–0.99) | 0.039 |
The p value for interaction between UO and UO/FI ratio was 0.044. The VIF value were 2.69 and 2.83 for Model A and Model B, respectively
Abbreviations: UO Urine output, UO/FI Urine output/fluid intake