National Comorbidity Survey
The National Comorbidity Survey (NCS) was the first large-scale field survey of mental health in the United States. Conducted from 1990-1992, disorders were assessed based on the diagnostic criteria of the then-most current DSM manual, the DSM-III-R (Diagnostic and Statistical Manual of Mental Disorders, Third Edition, Revised). The study has had large-scale implications on mental health research in the United States, as no widespread data on the prevalence of mental illness was previously available.
The National Comorbidity Replication Survey was a follow up study conducted between 2001 and 2003, among 9,282 participants.
Read more about National Comorbidity Survey: Most Notable Findings
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