MSTN and diabetes mellitus: In multivariate analyses that entered myostatin levels > 2170 pg/mL, age > 65 years, serum albumin, serum CRP, and history of diabetes as explanatory variables (Table 3), myostatin levels > 2170 pg/mL (Adjusted HR = 0.48, 95% CI [0.26–0.90]; p = 0.022) remained significantly associated with a decreased risk of mortality and CRP with an increased risk (Adjusted HR = 2.22, 95% CI [1.19–4.13]; p = 0.012).