In this study, dyslipidaemia was 2.24-fold higher (95% CI: 1.40–3.56) in children with an ALT equal or above the P75 compared to those with an ALT under the P75, and 0.29-fold lower in children with an AST/ALT ≥T3 ratio compared to those with an AST/ALT <1 ratio, after adjusting for age, gender and BMI. This evidence concerns the gene GPT and inherited lipid metabolism disorder.