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The National Comorbidity Survey: Baseline (NCS-1) 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 Survey: Reinterview (NCS-2) was a follow up study conducted between 2001 and 2002. The participants in NCS-1 were re-interviewed with the aim ''to collect information about changes in mental disorders, substance use disorders, and the predictors and consequences of these changes over the ten years between the two surveys.'' In conjunction with the NCS-2, two other surveys were done. The National Comorbidity Survey Replication (NCS-R) was a study done with 9,282 new participants. And the National Comorbidity Survey: Adolescent Supplement (NCS-A) was a study done between 2000 and 2004 with 10,000 adolescents. == Most notable findings == -The lifetime prevalence of at least 1 mental disorder: 48% -12 month prevalence of at least 1 mental disorder: 29% -Comorbidity: Of the people who experience mental illness in their lifetime (48% of pop), 27% will experience more than one. The resulting average is 2.1 mental disorders per (disordered) person. -Only 40% of people who had ever had a disorder received professional treatment. -Only 20% of people who had a disorder within the past year received professional help. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「National Comorbidity Survey」の詳細全文を読む スポンサード リンク
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