Epidemiology of Narcolepsy Type 1 and Type 2 in Spain

Inclusion Criteria

• •\- Core Group:
• •1. Participants with NT1 or NT2 following International Classification of Sleep Disorders, 3rd Edition (ICSD-3) or ICSD-3 text revision (ICSD-3-TR) criteria who are alive at any point during 2023 or 2024.
• •2. Any age, ethnicity and nationality.
• •3. Treated / under follow-up in the study site and residing in the hospitals' reference areas. Consideration will be given if participants have changed their address or reached adulthood.
• •1. Confirmation to have a diagnosis of NT1 or NT2 by a specialist.
• •2. Participants greater than equal to (≥) 18 years or parents of narcolepsy participants under 18 years of age.
• •3. Any gender, ethnicity or nationality.
• •4. Residence in Spain.