| Percentage change (%) | Interval | Accumulated |
|---|
| n | r | p value | n | r | p value |
|---|
| Muscle mass |
| Ultrasound | 72 | 0.04 | 0.74 | 72 | 0.16 | 0.18 |
| BIA (Bioscan) | 55 | 0.37 | < 0.01 | 62 | 0.15 | 0.25* |
| BIA (Physion) | 60 | 0.51 | < 0.01 | 64 | 0.45 | < 0.01 |
| Subcutaneous tissue by ultrasound | 72 | 0.38 | < 0.01 | 72 | 0.20 | 0.09 |
| Fluid shift measured by BIA (Bioscan) | 55 | 0.56 | < 0.01 | 62 | 0.56 | < 0.01 |
| Extracellular water | 55 | 0.55 | < 0.01 | 62 | 0.57 | < 0.01 |
| Intracellular water | 55 | 0.47 | < 0.01 | 62 | 0.29 | 0.02 |
| Fluid shift measured by BIA (Physion) | 60 | 0.34 | < 0.01 | 64 | 0.34 | < 0.01 |
| Body weight | 67 | 0.57 | < 0.01 | 65 | 0.43 | < 0.01 |
- Interval: all variables are the changes (%) between each measurement day. Accumulated: all variables are the changes (%) from day 1 to measurement days. The Pearson correlation coefficient was used to investigate the relationships. BIA bioelectrical impedance analysis
- *The correlation of Bioscan was significant only at day 3 (r = 0.69, p < 0.01 at day 3, r = − 0.06, p = 0.83 at day 5, r = 0.18, p = 0.51 at day 7, r = − 0.12, p = 0.71 at day 10)
