The Attention Deficit and Hyperactivity Disorder (ADHD) is a frequent disorder in children and adolescents. The diagnosis is clinical with the input of several informants (child, family, teachers, …). ADHD is a risk factor for academic difficulties, school dropout, social isolation, injury, oppositional behaviour. In school-age children and adolescents having moderate to high or persistent impairment despite psycho-educational support and environmental modification, the first-line treatment is methylphenidate. Group or individual cognitive behavioural therapy for parents and/or children and adolescents is recommended for co-occurring disorders and persistent impairment. In France, the initiation of methylphenidate requires an annual hospital prescription by a paediatrician or psychiatrist, and a regular medical supervision (weight, heart rate, blood pressure, …). At least once a year, the indication of methyphenidate needs to be re-evaluated and confirmed at the hospital. In case of lack of efficiency and/or poor tolerance, therapeutic alternatives including non-psychostimulants should be considered.

A randomized controlled trial evaluated the dose of methylphenidate received over a period of 13 months. It was observed that the "combined treatment" group (methylphenidate + psychosocial treatments) received a lower average dose of methylphenidate than the "methylphenidate alone" group. These results are difficult to extrapolate to the general population, due to the study protocol (regular monitoring of ADHD symptoms with the aim of total remission).

For a global consideration of children's needs, it is important to better understand the interactions between these two therapeutic approaches.

To participate in the study, parents will have to complete an online questionnaire. This questionnaire contains anamnestic data collection, questionnaires to assess ADHD symptoms and parenting practices.

Inclusion criteria:

- Children 6-18 years of age, diagnosed with ADHD, treated with methylphenidate for at least 6 months. Parents' online response between may and june 2020.

Exclusion criteria:

- Exclusion of respondants not caring for the child , refusal to participate

Children diagnosed with ADHD, treated by methylphenidate, from primary care and community sample.

NC