On multivariate analysis, age (odds ratio [OR], 1.055; 95% confidence interval [CI], 1.014–1.097; p = 0.008), BMI (OR, 0.761; 95%CI, 0.681–0.852; p < 0.001), IGF-1 (OR, 0.980; 95%CI, 0.967–0.993; p = 0.003), BCAA (OR, 0.995; 95%CI, 0.991–0.999; p = 0.007), and high fracture risk based on the FRAX (OR, 3.143; 95%CI, 1.559–6.340; p = 0.001) remained significant and independent factors associated with sarcopenia (Table S4). This evidence concerns the gene IGF1 and sarcopenia.