GPT and diabetes mellitus: In addition, patients with fatty liver disease had a higher incidence of medical co–morbidities, including hypertension, diabetes and dyslipidaemia and had worse clinical laboratory findings, including haemoglobin A1c, homocysteine, total cholesterol, triglycerides, low–density lipoprotein cholesterol, aspartate aminotransferase, alanine aminotransferase, gamma–glutamyl transpeptidase and alkaline phosphatase levels than patients without fatty liver disease.