III. Methodology

B. Survey Universe

The survey universe was limited to programs operating within correctional facilities rather than to programs operating outside the facilities, such as diversion or probation and parole programs. Substance abuse treatment offered in such programs outside of correctional facilities is often provided in community-based facilities already covered in the annual UFDS survey.

The Bureau of Justice Statistics (BJS), the Office of Juvenile Justice and Delinquency Prevention (OJJDP), and the Federal Bureau of Prisons (BOP) within DOJ provided information to create an inventory of correctional facilities. Sources of information for the development of the inventory include the following:

•   State prisons: 1995 Census of State and Federal Correctional Facilities (Adult) from the DOJ/BJS;

•   Federal prisons: The preceding data base and additional information on specific treatment programs from the BOP’s substance abuse treatment division;

•   Jails: 1993 Census of Jails from the DOJ/BJS; and

•   Juvenile facilities: 1995 Census of Public Juvenile Detention, Correctional, and Shelter Facilities from the DOJ/OJJDP.

Initially, the survey universe consisted of 8,242 facilities obtained from these DOJ sources. A total of 501 correctional facilities that were on these lists but were already listed in the National Master Facility Inventory (NMFI) were omitted from the survey universe because they had been included in SAMHSA’s 1996 Uniform Facility Data Set (UFDS) survey. Of these 501 NMFI facilities, 296 provided substance abuse treatment. Data for these 296 facilities were extracted from the 1996 UFDS data and are included in this report.

While the survey was in the field, 88 new correctional facilities were identified from facility lists provided by state agencies or from information provided by facility contacts during the survey. These newly identified facilities were reviewed; those not included in the existing surveys were added to the sampling frame. As a result of these additions and changes, the universe for the correctional survey was reduced to an interim count of 7,829 for the survey mailing and calls. During the survey, an additional 231 facilities were deemed ineligible for the survey (e.g., because of facility closure or record duplication); these facilities were excluded from the universe, resulting in an adjusted universe of 7,598 adult and juvenile correctional facilities. Table 1 provides a complete breakdown of the survey universe.
  
Table 1
Survey Universe and Response Rate  for the UFDS 1997 Survey of Correctional Facilities

Universe and Response Category
Total
Federal Prisons
State Prisons
Jails
Juvenile Facilities
Facilities from DOJ(1)
8,242
134
1,255
3,310
3,543
(Less Facilities in NMFI)(2)
(501)
0
(151)
(84)
(266)
(Less Ineligible Facilities)(3)
(231)
(5)
(151)
(74)
(126)
Newly Identified Facilities(4)
88
0
55
20
13
Adjusted Universe
7,598
129
1,133
3,172
3,164
Response
Nonrespondents
355
0
64
105
186
Respondents
7,243
129
1,069
3,067
2,978
Response Rate(5)
95.3%
100.0%
94.4%
96.7%
94.1%

1) The correctional facility universe from the U.S. Department of Justice (DOJ) is comprised of facility listings for the following:
•   Federal Bureau of Prisons (BOP);
•   Bureau of Justice Statistics (BJS) 1995 Census of State and Federal Correctional Facilities (Adult) (excludes 120 facilities with census responses indicating no programs for alcohol or drug abuse);
•   BJS 1993 Census of Jails; and
•   Office of Juvenile Justice and Delinquency Prevention (OJJDP) 1995 Census of Public Juvenile Detention, Correctional, and Shelter Facilities (all 1,132 public and 2,411 private facilities).

2) These 501 facilities were already listed in SAMHSA's National Master Facility Inventory (NMFI) of substance abuse facilities (296 of these provided treatment) and therefore were included in SAMHSA’s annual UFDS survey.

3) Ineligible facilities were comprised of facilities found to be closed or that duplicated records.

4) These facilities were identified by state correctional and juvenile service agencies and by other local sources.

5) Response rate was defined as the number of respondents as a percentage of the adjusted facility universe, which comprised all eligible facilities.

Source: SAMHSA, Office of Applied Studies, Uniform Facility Data Set (UFDS) 1997 Survey of Correctional Facilities.