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J Nerv Ment Dis. 2003 Mar;191(3):145-53.

Utility of the Time-Line Follow-Back to assess substance use among homeless adults.

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  • 1National Development and Research Institutes, Inc. (NDRI), 71 West 23 Street-Fl. 8, New York, New York 10010, USA.


Assessing substance use of homeless persons is a critical task. This study examines the test-retest reliability, concurrent validity, and sensitivity to change of the Time-Line Follow-Back interview, a calendar instrument used to assess days and quantities of alcohol use and days of illicit drug use, in the multisite Collaborative Program to Prevent Homelessness (CPPH). The Time-Line Follow-Back was reliable for assessing use during the past month and the recent 6 months. Results from the Time-Line Follow-Back were correlated with other self-reports of use, with research diagnoses of substance use disorder, and with clinician ratings of severity of substance abuse. The Time-Line Follow-Back detected changes in clients with severe mental illness and in those with less severe psychiatric problems.

[PubMed - indexed for MEDLINE]
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