Independent predictive variables for progressive disease based on multivariable logistic regression analysis
| Predictors | B | OR | 95% CI | p Value |
|---|---|---|---|---|
| Age, years | 0.024 | 1.024 | 0.999 to 1.050 | 0.057 |
| Female | 0.376 | 1.457 | 0.627 to 3.384 | 0.381 |
| Previous or current immunosuppressive therapy | −0.864 | 0.422 | 0.196 to 0.909 | 0.027 |
| Friction rubs | 2.523 | 12.462 | 1.253 to 123.905 | 0.031 |
| Proximal muscular weakness | 1.714 | 5.550 | 1.000 to 30.796 | 0.050 |
| Maximum VO2, % of predicted* | −0.021 | 0.979 | 0.964 to 0.995 | 0.009 |
| Missing indicator variable CPET | −1.067 | 0.344 | 0.049 to 2.432 | 0.285 |
*β is 0 if CPET is missing.
CPET, cardiopulmonary exercise test; VO2, volume oxygen uptake.