AUTHORS: Ostatníková, D., Kubranská, A., Marcinčáková Husárová, V., Pivovarčiová, A., Babková, J. ABSTRACT: Objectives: Autism spectrum disorder (ASD) is a set of heterogeneous neurodevelopmental conditions characterized by early-onset difficulties in social communication and unusually restricted, repetitive behavior and interests. One of the main features of autism is the unequal sex distribution, with higher prevalence in