GPT and metabolic dysfunction-associated steatotic liver disease: Aspartate aminotransferase to ALT ratio index (AAR) demonstrated relatively superior efficacy in diagnosing significant liver fibrosis among patients with CHB and NAFLD, while fibrosis-4 (FIB-4) exhibited superior performance in patients with CHB alone.<h4>Conclusion</h4>Patients with normal ALT can still demonstrate significant liver tissue damage.