Table 3.
Allometric multivariable associations with SM volume *.
| Men | Women | |||||
|---|---|---|---|---|---|---|
| Estimate | 95%CI | P-value | Estimate | (95%CI) | P-value | |
| Intercept | -3.49 | (-6.6, -0.24) | 0.034 | -6.51 | (-9.43, -3.74) | <0.0001 |
| African-American vs. Caucasian | 0.10 | (0.06, 0.14) | <0.0001 | 0.11 | (0.05, 0.14) | <0.0001 |
| Height (ln, cm) | 1.31 | (0.65, 1.91) | <0.0001 | 1.58 | (1.02, 2.11) | <0.0001 |
| Age (ln, yrs) | -0.11 | (-0.35, 0.14) | 0.41 | 0.21 | (-0.03, 0.46) | 0.085 |
| AT (ln, L) | 0.13 | (0.10, 0.16) | <0.0001 | 0.14 | (0.12, 0.17) | <0.0001 |
| Physical Activity | ||||||
| 2nd Quartile vs. 1st | 0.03 | (-0.03, 0.10) | 0.33 | 0.01 | (-0.05, 0.07) | 0.71 |
| 3rd Quartile vs. 1st | 0.06 | (-0.00, 0.12) | 0.070 | 0.04 | (-0.01, 0.10) | 0.11 |
| 4th Quartile vs. 1st | 0.11 | (0.04, 0.17) | 0.001 | 0.07 | (0.02, 0.13) | 0.013 |
| SEE | 0.12 | 0.11 | ||||
| Full Model Adjusted R2 | 0.43 | 0.60 | ||||
| Adjusted R2 (height only) | 0.13 | 0.16 | ||||
| Adjusted R2 (AT only) | 0.19 | 0.38 | ||||
*
Outcome analyzed is natural log (ln) transformed skeletal muscle (SM, L) from multivariable linear regression analyses. SEE, standard error of the estimate.
Estimates are slopes (βi) from the allometric model. AT, adipose tissue volume.