Table 3.
Association between BIA values and mechanically ventilated days by multiple regression analysis
| BIA values | Beta- coefficient | p value |
|---|---|---|
| ICW | 0.12 | 0.519 |
| ECW | 0.18 | 0.328 |
| TBW | 0.14 | 0.434 |
| ECW/TBW | 0.14 | 0.456 |
| ECW/body weight | 0.14 | 0.449 |
| Protein | 0.13 | 0.494 |
| Mineral | 0.11 | 0.546 |
| Body fat mass | −0.10 | 0.568 |
| Body fat rate | −0.12 | 0.525 |
| Visceral fat area | −0.05 | 0.768 |
| Muscle mass | 0.14 | 0.444 |
| FFM | 0.14 | 0.451 |
| TBW/FFM | 0.18 | 0.324 |
| PhA ≥ 3.5 | −0.02 | 0.898 |
* BIA: bioelectrical impedance analysis, ICW: intracellular water, ECW: extracellular water, TBW: total body water, FFM: fat-free mass, PhA: phase angle