Table 3. Comparisons of baseline characteristics of subjects enrolled in the two stages (categorical variables).
| Number (overall) | Proportion (overall) | Number (stage 1) | Proportion (stage 1) | Number (stage 2) | Proportion (stage 2) | p | |
|---|---|---|---|---|---|---|---|
| Sex (male) | 263 | 0.64 | 158 | 0.67 | 105 | 0.60 | 0.155 |
| Source | |||||||
| Ward | 285 | 0.70 | 158 | 0.67 | 127 | 0.73 | 0.228 |
| Post-operation | 34 | 0.08 | 22 | 0.09 | 12 | 0.07 | 0.485 |
| Emergency | 101 | 0.25 | 67 | 0.28 | 34 | 0.20 | 0.052 |
| Sepsis | 50 | 0.12 | 29 | 0.12 | 21 | 0.12 | 1.000 |
| AKI | 73 | 0.18 | 48 | 0.20 | 25 | 0.14 | 0.152 |
| Glucocorticoid | 54 | 0.13 | 34 | 0.14 | 20 | 0.11 | 0.475 |
| Malnutrition | 182 | 0.44 | 105 | 0.44 | 77 | 0.44 | 1.000 |
| Vasopressors | 135 | 0.33 | 83 | 0.35 | 52 | 0.30 | 0.308 |
| MV | 352 | 0.86 | 201 | 0.85 | 151 | 0.87 | 0.749 |
| AGI.I | 276 | 0.67 | 173 | 0.73 | 103 | 0.59 | 0.007 |
| AGI.II | 67 | 0.16 | 41 | 0.17 | 26 | 0.15 | 0.601 |
| AGI.III | 35 | 0.09 | 13 | 0.06 | 22 | 0.13 | 0.017 |
| AGI.IV | 2 | 0.00 | 1 | 0.00 | 1 | 0.01 | 1.000 |
| Enteral nutrition use | 173 | 0.42 | 100 | 0.42 | 73 | 0.42 | 1.000 |
| Parenteral nutrition | 74 | 0.18 | 59 | 0.25 | 15 | 0.09 | <0.01 |
Abbreviations: AKI: acute kidney injury; MV: mechanical ventilation; AGI: acute gastrointestinal injury.