Table 2.
Skeletal muscle characteristics for the whole group and according to quartiles of fatty liver index (FLI)
| All n = 403 |
Fatty liver index (FLI) | |||||
|---|---|---|---|---|---|---|
| Q1 n = 101 |
Q2 n = 101 |
Q3 n = 101 |
Q4 n = 100 |
p | ||
| Radius: muscle density (mg/cm3) | 76.21 (± 2.77) | 76.96 (± 2.39) | 76.58 (± 2.36) | 76.42 (± 2.19) | 74.92 (± 3.50) | < 0.001 |
| Tibia: muscle density (mg/cm3) | 71.51 (± 4.59) | 73.05 (± 4.13) | 71.85 (± 4.33) | 71.06 (± 4.37) | 69.85 (± 5.02) | < 0.001 |
| Radius: muscle CSA (cm2) | 41.53 (± 6.45) | 39.13 (± 6.40) | 40.71 (± 5.98) | 41.40 (± 5.48) | 44.79 (± 6.58) | < 0.001 |
| Tibia: muscle CSA (cm2) | 71.24 (± 10.51) | 67.84 (± 10.31) | 70.84 (± 9.91) | 71.32 (± 9.84) | 75.41 (± 10.82) | < 0.001 |
| ALM (kg) | 26.0 (± 3.8) | 24.5 (± 3.5) | 26.0 (± 3.8) | 25.8 (± 3.2) | 27.5 (± 4.0) | < 0.001 |
| ALM/h2 (kg/m2) | 8.49 (± 0.94) | 8.04 (± 0.85) | 8.41 (± 0.92) | 8.54 (± 0.79) | 8.99 (± 0.95) | < 0.001 |
| Low ALM/h2 | 16 (4.0%) | 9 (8.9%) | 3 (2.0%) | 3 (2.0%) | 2 (2.0%) | - |
| ALM/BMI (m2) | 0.95 (± 0.15) | 1.04 (± 0.14) | 0.98 (± 0.13) | 0.91 (± 0.11) | 0.85 (± 0.13) | < 0.001 |
| Low ALM/BMI | 82 (20.4%) | 6 (5.9%) | 10 (9.9%) | 22 (21.8%) | 44 (44.0%) | < 0.001 |
| HGS (kg) | 40.1 (± 7.2) | 40.5 (± 7.5) | 41.2 (± 6.9) | 39.3 (± 6.8) | 39.3 (± 7.3) | 0.179 |
| Low HGS* | 111 (27.6%) | 27 (27.0%) | 20 (19.8%) | 31 (30.7%) | 33 (33.0%) | 0.169 |
| Low HGS and low ALM/h2* | 8 (2.0%) | 5 (5.0%) | 2 (2.0%) | 0 (0%) | 1 (1.0%) | - |
| Low HGS and low ALM/BMI* | 40 (10.0%) | 4 (4.0%) | 6 (5.9%) | 9 (8.9%) | 21 (21.0%) | < 0.001 |
Low values: HGS < 35.5 kg; ALM/h2 (< 6.94 kg/m2), ALM/BMI (< 0.827 m2)
CSA cross-sectional area; ALM appendicular lean mass; BMI body mass index; HGS handgrip strength
*Missing data: radius muscle density and CSA n = 54; tibia muscle density and CSA n = 56; HGS n = 1