In the receiver operating characteristic analysis using NAFLD indices, including AIP and RLP-C, to identify NAFLD, the ZJU index exhibited the highest area under the curve (AUC = 0.823) followed by AIP (AUC = 0.747) and RLP (AUC = 0.668), respectively. The gene discussed is AIP; the disease is metabolic dysfunction-associated steatotic liver disease.