Table 1

Comparative Descriptive Statistics: Outpatient vs. Residential


Outpatient
Residential
Tests of Significance




N
1,342
2,823

Background



     Age (Mean/SD)
37.9 (8.4)
36.0 (8.4)
t[4,163] = 6.630, p < .001
     Sex



          Male
68.3%
59.5%
X2[1, 4,165] = 29.395, p < .001
          Female
31.7%
40.5%






100.0%
100.0%





Criminal Background



     Lifetime years in prison (Mean/SD)



          2 years or less
36.1%
46.2%
X2[5, 3,897] = 41.301, p < .001
          2.01 to 4.00 years
19.9%
18.8%

          4.01 to 6.00 years
16.1%
12.6%

          6.01 to 8.00 years
8.4%
6.1%

          8.01 to 10.00 years
6.1%
5.8%

          More than 10 years
13.4%
10.5%






100.0%
100.0%





     Most recent offense*



          Violent
15.9%
9.9%
X2[3, 4,162] = 43.810, p < .001
          Property
28.8%
29.8%

          Drug
48.7%
55.7%

          Other
6.6%
4.6%






100.0%
100.0%





     Next Arrest Strike Number



          First Strike
24.2%
18.2%
X2[4, 3,967] = 36.326, p < .001
          Second Strike
11.3%
10.0%

          Third Strike
11.5%
9.0%

          None of the Above
35.8%
41.5%

          Don't Know
17.2%
21.3%






100.0%
100.0%





     Level of Security



          Felons
87.3%
50.3%
X2[1, 4,165] = 531.586, p < .001
          Civil Addicts
12.7%
49.7%






100.0%
100.0%





Drug Use



     Alcohol/drug disoder



          Neither/Abuse
23.0%
14.5%
X2[1, 3,951] = 44.166, p < .001
          Dependence
77.0%
85.5%






100.0%
100.0%





     Most frequently cited problem



          drug prior to incarceration



          Alcohol
10.0%
7.7%
X2[4, 3,933] = 56.176, p < .001
          Cocaine/Crack
23.4%
25.1%

          Meth/Amphetamine/Stimulants
29.8%
38.6%

          Opiates
18.6%
17.4%

          Other drug**
18.2%
11.2%






100.0%
100.0%





     Frequent user prior to prison
77.6%
84.0%
X2[1, 4,165] = 25.296, p < .001
Involvement in Drug Treatment



     Time in prison treatment



          0 to 90 days
7.1%
9.1%
X2[3, 3,520] = 30.597, p < .001
          91 to 180 days
18.1%
13.3%

          181 to 270 days
29.8%
25.1%

          More than 270 days
45.0%
52.5%






100.0%
100.0%





     Time in Aftercare: Episode 1



          0 to 90 days
58.0%
67.0%
X2[1, 4,165] = 31.836, p < .001
          More than 90 days
42.0%
33.0%






100.0%
100.0%





Attended Aftercare: Post-Episode 1
16.2%
21.3%
X2[1, 4,165] = 15.301, p < .001

* Data obtained from CDC Offender-Based Information System.

** Includes tranquilizers, hallucinogens, other drugs

Burdon et al. Substance Abuse Treatment, Prevention, and Policy 2007 2:16   doi:10.1186/1747-597X-2-16

Open Data