Inclusion Criteria:  to be aged at least 18 years old in 2021 Have had an evaluation for severe asthma during childhood at Trousseau Hospital or Robert Debré Hospital Affiliation to an health insurance coverage. Non-inclusion criteria  Exclusion Criteria:  Patient without severe asthma at the time of the assessment in childhood Patient with an associated respiratory disease other than asthma (bronchopulmonary dysplasia, cystic fibrosis, primary ciliary dyskinesia) whose diagnosis has been invalidated or confirmed during the initial assessment Patient opposition