Table 2.
Body Composition Results
| All Fontan Participants (n=28) | Normal Skeletal Muscle Mass (n=9) | Skeletal Muscle Mass Deficit (n=19) | P Valuea | |
|---|---|---|---|---|
| Total lean mass, kg | 42.9±8.2 | 44.4±8.8 | 42.1±8.0 | 0.49 |
| Total lean mass index, kg/m2 | 15 [13.9–16.2] | 16.2±2.0 | 14.9±1.1 | 0.09 |
| Total lean mass index Z score | −0.70±1.15 | 0.55±0.64 | −1.29±0.80 | <0.001 |
| Appendicular lean mass, kg | 18.0±4.3 | 18.9±4.4 | 17.4±4.3 | 0.38 |
| ALMI, kg/m2 | 6.4±1.0 | 6.9±1.0 | 6.1±0.9 | 0.04 |
| ALMI Z score | −1.49±1.10 | −0.25±0.66 | −2.08±0.68 | <0.001 |
| Trunk to appendicular fat ratio | 1.3 [1.1–1.8] | 1.3 [0.9–1.4] | 1.5 [1.1–1.9] | 0.22 |
| Fat mass index, kg/m2 | 6.5 [4–9.9] | 9.9±5.3 | 6.3±3.04 | 0.08 |
| %BF | 30±11 | 35±13 | 27±10 | 0.11 |
| %BF Z score | 0.23±1.26 | −0.04 [−0.9‐1.9] | −0.32 [−0.8‐1.08] | 0.66 |
Data are presented as mean±SD or median [interquartile range]. ALMI indicates appendicular lean mass index; %BF, percentage body fat.
a
P value for normal skeletal muscle mass compared with skeletal muscle mass deficit groups.