[Psychopathology in youths with intellectual disabilities--prevalence and prevention].

A survey of epidemiological findings suggests a significantly increased level of emotional and behavioural problems in children and youth with intellectual disabilities. Some biological and social factors are presented which contribute to this elevated risk for psychopathology. Assessment and intervention planning needs to acknowledge genetic dispositions, and limitations of the capacity of information processing which characterise children with intellectual disabilities. Early intervention may help to prevent emotional and behavioural problems by supporting a positive parent-child relationship, increasing the parents' educational competence and assisting preschool teachers in supporting positive relationships with peers, and promoting social competence.