Myostatin levels and HOMA-IR in nonsarcopenia group were lower than sarcopenia and severe sarcopenia group (18.87 [13.48–20.87] vs 21.48 [16.1–33.33] vs 32.48 [21.38–38.90] ng/ml, p = 0.014) (see Figure 2) and 0.87 [0.56–1.33] vs 2.73 [1.88–2.96] vs 2.35 [1.93–2.72], respectively; p < 0.001(see Figure 3)). Here, MSTN is linked to sarcopenia.