Table 2.
Adjusted effect of total body water (TBW) and intracellular water (ICW) on handgrip, Barthel index score, gait speed and frailty for the overall sample and by sex
| Handgrip (kg) | Barthel index | Gait speed (m/s) | Frailty | |||||
|---|---|---|---|---|---|---|---|---|
| β | p | β | p | β | p | OR | p | |
| All individuals | ||||||||
| TBW (%)a | 0.139 | 0.114 | 0.139 | 0.143 | 0.004 | 0.285 | 0.96 | 0.429 |
| ICW (%)a | 0.197 | 0.021 | 0.299 | 0.001 | 0.013 | <0.001 | 0.84 | 0.005 |
| ICW (%)b | 0.144 | 0.144 | 0.140 | 0.189 | 0.007 | 0.090 | 0.89 | 0.061 |
| Women | ||||||||
| TBW (%)c | 0.174 | 0.098 | 0.299 | 0.094 | 0.002 | 0.740 | 0.96 | 0.581 |
| ICW (%)c | 0.127 | 0.176 | 0.393 | 0.013 | 0.016 | <0.001 | 0.84 | 0.017 |
| ICW (%)d | 0.059 | 0.579 | 0.170 | 0.340 | 0.009 | 0.090 | 0.88 | 0.089 |
| Men | ||||||||
| TBW (%c | 0.115 | 0.409 | -0.002 | 0.985 | 0.005 | 0.292 | 0.93 | 0.496 |
| ICW (%)c | 0.352 | 0.022 | 0.229 | 0.017 | 0.011 | 0.060 | 0.84 | 0.162 |
| ICW (%)d | 0.306 | 0.080 | 0.145 | 0.192 | 0.006 | 0.018 | 0.91 | 0.460 |
TBWas % of total body weight. ICWas % of total body water. β: linear regression coefficient. OR: odds ratio; a. Adjusted for age, sex, BMI and number of comorbidities; b. Adjusted for age, sex, muscle mass and number of comorbidities; c. Adjusted for age, BMI and number of comorbidities;d. Adjusted for age, muscle mass, BMI and number of comorbidities.