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National Survey of Substance Abuse Treatment Services (N-SSATS), 2011 (ICPSR 34539) RSS

Alternate Title:  N-SSATS, 2011

Principal Investigator(s):


The National Survey of Substance Abuse Treatment Services (N-SSATS) is designed to collect information from all facilities in the United States, both public and private, that provide substance abuse treatment. N-SSATS provides the mechanism for quantifying the dynamic character and composition of the United States substance abuse treatment delivery system. The objectives of N-SSATS are to collect multipurpose data that can be used to assist the Substance Abuse and Mental Health Services Administration (SAMHSA) and state and local governments in assessing the nature and extent of services provided and in forecasting treatment resource requirements, to update SAMHSA's Inventory of Substance Abuse Treatment Services (I-SATS), to analyze general treatment services trends, and to generate the online Substance Abuse Treatment Facility Locator, as well as the National Directory of Drug and Alcohol Abuse Treatment Programs.

Data are collected on topics including facility operation, services offered (assessment, testing, transitional, ancillary, and pharmacotherapies), detoxification, primary focus (substance abuse, mental health, both, general health, and other), Opioid Treatment Programs and medications dispensed/prescribed, counseling and therapeutic approaches, standard operating procedures, special programs/groups offered, languages in which treatment is provided, type of treatment provided (hospital inpatient, residential, outpatient), number of clients (by service, total, and under age 18), number of beds, types of payment accepted, sliding fee scale, and facility accreditation and licensure/certification.

Series: National Survey of Substance Abuse Treatment Services (N-SSATS) Series

Access Notes

  • These data are freely available.


National Survey of Substance Abuse Treatment Services (N-SSATS), 2011 - Download All Files (38.6 MB)

Study Description


United States Department of Health and Human Services. Substance Abuse and Mental Health Services Administration. Center for Behavioral Health Statistics and Quality. National Survey of Substance Abuse Treatment Services (N-SSATS), 2011. ICPSR34539-v2. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2014-04-25. http://doi.org/10.3886/ICPSR34539.v2

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This study was funded by:

  • United States Department of Health and Human Services. Substance Abuse and Mental Health Services Administration. Center for Behavioral Health Statistics and Quality

Scope of Study

Subject Terms:   alcohol abuse, drug abuse, drug treatment, health care services, HIV, intervention, substance abuse, substance abuse treatment, treatment facilities, treatment programs

Geographic Coverage:   United States

Time Period:  

  • 2011

Date of Collection:  

  • 2011-03-31--2011-10-24

Unit of Observation:   facility

Data Types:   survey data

Data Collection Notes:

Data were collected by Mathematica Policy Research, Inc., Princeton, NJ, and prepared for release by Synectics for Management Decisions, Inc., Arlington, VA.

N-SSATS is a point-prevalence survey. It provides information on the substance abuse treatment system and its clients on the reference date (March 31, 2011). Client counts do not represent annual totals. Rather, N-SSATS provides a "snapshot" of substance abuse treatment facilities and clients on an average day.

N-SSATS collects data about facilities, not individual clients. Data on clients represent an aggregate of clients in treatment for each reporting facility.

N-SSATS attempts to obtain responses from all known treatment and prevention facilities, but it is a voluntary survey. There is no adjustment for the approximately five percent facility nonresponse.

For users who wish to calculate client counts and admissions, instructions are available on the N-SSATS Series page and at How to calculate N-SSATS client counts and admissions using SDA.


Sample:   The Inventory of Substance Abuse Treatment Services (I-SATS) provides the sampling frame for N-SSATS. Two categories of treatment facilities in I-SATS may be distinguished. The largest group of facilities includes those that are licensed, certified, or otherwise approved by the state substance abuse agency to provide substance abuse treatment. The second group represents the SAMHSA effort in recent years to make I-SATS as comprehensive as possible by including treatment facilities that state substance abuse agencies, for a variety of reasons, do not license or certify. Many of these facilities are private, for-profit, small group practices, or hospital-based programs.

Mode of Data Collection:   computer-assisted telephone interview (CATI), mail questionnaire, telephone interview, web-based survey

Response Rates:   There were 17,376 facilities in the survey universe. Of these facilities, 12 percent were found to be ineligible for the survey because they had closed or did not provide substance abuse treatment or detoxification on March 31, 2011. Of the remaining 15,222 facilities, 14,302 facilities (94 percent) completed the survey and 13,720 (90 percent) were eligible for this report. The percentage of respondents who completed the survey via the mail was 8.4 percent, while 12.3 percent completed the survey via telephone, and 79.3 percent completed the survey using a Web-based questionnaire.

Extent of Processing:  ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Performed consistency checks.
  • Created variable labels and/or value labels.
  • Standardized missing values.
  • Created online analysis version with question text.
  • Performed recodes and/or calculated derived variables.
  • Checked for undocumented or out-of-range codes.


Original ICPSR Release:  

Version History:

  • 2014-04-25 This study update was done in order to remove the geographic variables of County, MSA, and CBSA.
  • 2013-09-24 Updated ddi file to include variable-level groupings. Minor revision made to the codebook.

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