Sample details

The HARP study aims to observe the long-term clinical course of anxiety disorders and assess how comorbid psychiatric conditions influence recovery or recurrence. Participants were recruited and underwent baseline assessments in 1989 to 1991 after being referred from 11 clinical treatment facilities across the New England area of the United States of America. At baseline, there were 711 participants aged 18 to 86. Follow-up interviews were conducted at 6-month intervals for the first two years, annually for years 3-6, and then every 6 months from years 7 to 12. An associated study, Harvard/Brown Anxiety Research Project - Phase II (HARP-II), has similar aims but has recruited a new cohort of African American, Latino, and Non-Latino White participants.

Study design

Cohort - clinical

Number of participants at first data collection

711

Age at first data collection

Varied

Participant year of birth

Varied

Participant sex

MF

Representative sample

No

Sample features

AdultsPeople with psychiatric conditionsPatients and clinical populationsMental health service users

Dataset details

Country

United States of America

Year of first data collection

2025-02-18T09:22:10.634000+00:00

Primary institutions

Brown University

Links

Primary URL

Profile paper DOI

https://doi.org/10.1176/ajp.150.4.600

Funders

National Institute of Mental Health (NIMH)

Ongoing?

Yes

Data types collected

Standard measuresNon-standard measures