TTR and sarcopenia: Sarcopenic patients had a significantly lower BMI (16.75 ± 2.59 vs. 19.49 ± 3.03, P < 0.001), lower serum albumin levels (29.2 ± 6.1 g/L vs. 33.0 ± 8.0 g/L, P = 0.006), lower prealbumin levels (141.8 ± 70.2 vs. 175.0 ± 84.9 mg/L, P = 0.030), and lower hemoglobin levels (98.3 ± 18.8 vs. 115.1 ± 24.4 g/L, P < 0.001) than those without sarcopenia.