Multivariable linear regression models demonstrating independent relationships between body composition and bone Z scores among patients with RA and controls.
| Variables | Trabecular vBMD Z Score | Cortical Thickness Z Score† | ||
|---|---|---|---|---|
| Controls | RA | Controls | RA | |
| B (95% CI) | B (95% CI) | B (95% CI) | B (95% CI) | |
| ALMI Z score | 0.26*** (0.15–0.37) | 0.29* (0.062–0.52) | 0.37*** (0.26–0.48) | 0.33** (0.13–0.53) |
| FMI Z score | 0.071 (−0.044 to 0.18) | 0.11 (−0.11 to 0.34) | −0.006 (−0.12 to 0.11) | −0.068 (−0.27 to 0.13) |
| Muscle density Z score | 0.11* (0.020–0.21) | 0.072 (−0.10 to 0.25) | 0.094* (0.002–0.19) | 0.11 (−0.049 to 0.28) |