HARP-II aims to describe the characteristics and course of anxiety in African American, Latino, and Non-Latino White individuals. It extended the work of the Harvard/Brown Anxiety Research Project (HARP) by recruiting a new, more diverse cohort. HARP-II included 165 African American, 150 Latino, and 172 Non-Latino White participants, recruited from clinical referrals and mass advertisements in the geographic area surrounding Brown University from 2004. Participants must meet the criteria for at least one of the following disorders: Generalized Anxiety Disorder, Social Phobia, Panic Disorder with or without Agoraphobia, Agoraphobia without a history of Panic Disorder, or Post-traumatic Stress Disorder. All participants undergo baseline intake interviews. The first 60 participants were interviewed 6 and 12 months following the intake interview and yearly thereafter. After October 2008, the 6-month interview was dropped, and all participants were interviewed 12 months post-intake and yearly thereafter.

Recruitment is ongoing