Prevalence, incidence, and medications of narcolepsy in Japan: a descriptive observational study using a health insurance claims database.

"Declarations Conflict of interestYK, KS, YS, HM, and MI are the employees of Eisai Co., Ltd. AI is a medical adviser for Eisai Co., Ltd. Ethical statementAs the study used pre-existing, anonymized data whose identifiable personal information could not be reconstructed, it was outside the scope of the Japanese Ethical Guidelines for Medical and Health Research Involving Human Subjects, and an ethics approval from an institutional review board was not required. Informed consentNo informed consent was obtained from the individuals included in this study, as all individuals’ personal and site information were anonymized by the data provider (JMDC Inc.). Conflict of interest YK, KS, YS, HM, and MI are the employees of Eisai Co., Ltd. AI is a medical adviser for Eisai Co., Ltd."

"Funding This study was funded by Eisai Co., Ltd."