GPT and fatty liver disease: Patients with advanced liver steatosis (grade 2 and 3) had greater PRFT than those with grade 0 and 1 fatty liver (12.79 ± 7.60 mm vs. 9.92 ± 6.58 mm, P < 0.05), as well as higher WC, fasting glucose, triglycerides, HOMA-IR, ALT, AST, and glycated hemoglobin (Table 3).