MSTN and inflammatory bowel disease: Levels of MSTN (OR = 0.736, 95% CI 0.439–0.906; p = 0.0273) and Act A (OR = 0.665, 95% CI 0.379–0.974; p = 0.0229) were shown to be predictors of sarcopenia in the IBD patients after adjusting for age, gender, and BMI of the subjects (Table 6).