Prevalence and incidence of narcolepsy symptoms in the US general population.

Objective: The objectives of this study are to evaluate the prevalence and incidence of Narcolepsy type 1 and type 2 and to determine the prevalence of narcolepsy diagnosis criteria in the US general population.

Methods: This longitudinal study was conducted in the adult US general population in two occasions. The initial interviews included 15 states (Arizona, California, Colorado, Florida, Idaho, Missouri, New York, North Carolina, North Dakota, Oregon, Pennsylvania, South Dakota, Texas, Washington, and Wyoming).

Longitudinal study to assess antidepressant treatment patterns and outcomes in individuals with depression in the general population.

Background: Major depressive disorder (MDD) is largely managed in primary care, but physicians vary widely in their understanding of symptoms and treatments. This study aims to better understand the evolution of depression from initial diagnosis over a 3-year period.

Methods: This was a noninterventional, retrospective, longitudinal study, with 2 waves of participant interviews approximately 3 years apart.