Evaluation of Substance Abuse Treatment for the Homeless

The National Treatment Improvement Evaluation Study (NTIES) is a Congressionally-mandated five-year study of the impact of drug and alcohol treatment on thousands of clients in hundreds of treatment units that received public support from the U.S. Department of Health and Human Services (HHS), Substance Abuse and Mental Health Services Administration (SAMHSA), Center for Substance Abuse Treatment (CSAT). The CSAT-commissioned study was conducted by the National Opinion Research Center, University of Chicago, in conjunction with Research Triangle Institute. The full report provides a wealth of data useful in improving today's treatment programs and in designing new programs to advance treatment in the future. The "Methodology" section, found in the Appendix, contains information about study design and detail about participants. The information reported here was gathered from 4,411 clients from across the country. It includes clients who completed an intake interview and returned for at least a single visit. (SAMHSA)