LEP and metabolic dysfunction-associated steatotic liver disease: Associations were subsequently explored in individual groups and revealed statistical significance only in children and adolescents with PWS between ANGPTL8 levels and BMI SDS (r = 0.65, p = 0.001), leptin (r = 0.65, p = 0.001) ALT (r = 0.46, p < 0.05), FLI (r = 0.47, p < 0.05) (Fig. 5), as well as prevalence (r = 0.58, p < 0.01) and grading of NAFLD (r = 0.42, p < 0.05).