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Table 1 Comparative Descriptive Statistics: Outpatient vs. Residential

From: Differential effectiveness of residential versus outpatient aftercare for parolees from prison-based therapeutic community treatment programs

  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
  1. * Data obtained from CDC Offender-Based Information System.
  2. ** Includes tranquilizers, hallucinogens, other drugs