GPT and infection: Considering each group separately, the baseline ALT and AST values were significantly higher in individuals with HIV-HBV/HBsAg-positive compared with cases with HIV mono-infection or cases with HIV-HBV/HBsAg loss (p < 0.001) and this difference mainly resided in the significantly higher AST and ALT values found at baseline in HBsAg-positive cases vs. HIV monoinfection.