[DAMP and ADHD as "hidden" functional disabilities. Carefully prepared care of children at risk is beneficial for an optimal development].

A current study of seven-year-olds in Karlstad showed the incidence of DAMP (deficits in attention, motor function and perception) to be 1.7 per cent, and that of ADHD (attention deficit hyperactivity disorder) to be 2.0 per cent, figures consistent with those obtained in previous studies. A further 4.9 per cent were found to have milder forms of DAMP. Research during the past few decades has yielded comprehensive knowledge of the effect of such disability on the child's development. Manifestation of the child's problems is dependent on how the child is treated by others, and on the understanding and help deriving from the family and from the preschool or school. It is essential to evolve a well considered management programme of health care for which the school or preschool is responsible. The programme should include methods for early detection, access to a competent investigatory team, support and treatment facilities for the child and the parents, and assistance at school or preschool.