GPT and steatosis: (i) Serum markers: SteatoTest combines 10 readily available blood tests with age, gender and BMI, and in a study of >2000 patients with viral hepatitis, NAFLD or ALD, demonstrated an AUROC of 0.8 for the diagnosis of steatosis, which was superior to that of GGT, ALT or ultrasound.90, 108 NASHTest combines 13 biochemical and clinical variables to predict the presence or absence of NASH, achieving specificity, sensitivity, PPV and NPV of 94%, 33%, 66% and 81% respectively.109 Together with FibroTest, these three panels comprise the FibroMax panel described previously.89