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Letters to the Editor
March 2007

Drug Use Disorders in the National Comorbidity Survey: Have We Come a Long Way?

Arch Gen Psychiatry. 2007;64(3):380-381. doi:10.1001/archpsyc.64.3.380

Kessler and colleagues recently published 4 articles1-4 reporting lifetime and 12-month prevalence rates, age at onset, and estimates of treatment use for DSM-IV psychiatric and substance use disorders (SUDs) from the National Comorbidity Survey Replication (NCS-R) study. However, methods used in the NCS to collect SUDs have substantial limitations that were not mentioned in the Commentary5 or any of the 4 articles.

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