The occurrence of inattention, hyperactivity, impulsivity and coexisting symptoms in a population study of 471 6-8-year old children based on the FTF (Five to Fifteen) questionnaire.

Objective: To study the usefulness of a new parent questionnaire and to evaluate the prevalence of inattention, hyperactivity, impulsivity and co-existing problems in a group of 6-8-year-old children.

Method: A questionnaire comprising 179 three-score-items including the DSM-IV diagnostic symptom criteria on AD/HD and questions on motor function, executive functions, perception, memory, language and speech, learning, social skills and psychiatric problems was used (5-15 questionnaire, FTF). The answers given by parents of 6-8-year-old children in a community in Finland are presented.