Attention Deficit Hyperactivity Disorder (ADHD) with a overall prevalence of 5.3% is one of the most common neurobehavioral disorders in children. In the foreign literature, many studies bring to light in children and adolescents the negative impact of ADHD on overall quality of life. Some of these studies were able to identify the fact that the higher the age of ADHD children or adolescents, the lower the quality of life. Currently, to our knowledge, only a few European studies have demonstrated the negative impact of ADHD on the quality of life of children and adolescents. In addition, these studies used only questionnaires intended for parents and not for children or adolescents.

During a regular follow-up consultation with their referent child psychiatrist, adolescents accompanied by at least one of their parents will be informed of the modalities of our study. A newsletter will be delivered to parents and one to the adolescent. If neither the adolescent nor the parents is opposed to participate, the child psychiatrist will register the patient on the list of study participants. He will also fill out a medico-social information sheet about the adolescent as to summarize the data in the medical record. At the end of this consultation, in the waiting room, adolescents will answer questionnaires KIDSCREEN-27 and MSPSS; their parents will complete the CBCL questionnaire. These questionnaires will be handed to the secretary who will put them back in the patient's record. The KIDSCREEN-27, MSPSS and CBCL questionnaires as well as the medico-social information sheet will be source documents. The principal investigator or one of the associates investigators will complete the case report form from these source documents. For this purpose the data will be entered anonymously into a data entry software on a computer server secured by the Centre Psychothérapique de Nancy (CPN). Then, anonymous data from the software will be forwarded to Dr. Epstein of the Clinical Investigation Center for statistical analysis. The study will begin when the favourable opinion of the Ethical Research Comittees will be obtained and the study will last one year.

Cross-sectional, descriptive epidemiological study based on single-centre trials

Inclusion Criteria:

• Adolescents aged 12 to 18 years
• Diagnosis of ADHD (f 90.0) ascertained by a child psychiatry according to CIM-10 criteria
• Seen by a child psychiatrist in consultation and accompanied by at least one of their parents
• Adolescents and at least one parent who has received enlightened information about the study
• Non-opposition to participate in the study gathered from at least one of their parents
• Patient affiliated or beneficiary of a social security scheme

Exclusion Criteria:

• Illiteracy of the parents or the adolescents
• Difficulties to understand french for the parents or the adolescents

Adolescents (12 to 18 years old) with diagnosis of ADHD followed during regional child psychiatric consultation at Child department of Nancy University Hospital