Sex and age differences in the association between anxiety disorders and narcolepsy: A nationwide population-based case control study

To examine the association between narcolepsy and anxiety disorders.This population-based, retrospective case-control study analyzed Taiwan's National Health Insurance Research Database between 2000 and 2013. We included narcoleptic patients aged at least 12 years, diagnosed according to the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) code 347. The cases and the propensity score-matched controls were...