Body mass index(BMI), albumin(ALB), fibroblast growth factor 19(FGF19), and tumour necrosis factor alpha(TNF-α) were independent protective factors for sarcopenia [BMI: Exp (B) 0.007, 95% CI: 0.000-0.244, p = 0.006;ALB: Exp (B) 0.490, 95% CI: 0.281-0.853, p = 0.012; FGF19: Exp(B) 0.804, 95% CI: 0.683-0.946, p = 0.009; TNF-α: Exp (B) 0.379, 95% CI: 0.194-0.742, p = 0.005]. This evidence concerns the gene TNF and sarcopenia.