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. Author manuscript; available in PMC: 2008 Dec 1.
Published in final edited form as: Addict Behav. 2007 May 3;32(12):2819–2836. doi: 10.1016/j.addbeh.2007.04.020

Table 2.

Sample Characteristics of Three Studies

  All Study 1 Study 2 Study 3
  N = 266 N= 80 N = 80 N= 106
 
  M/% (SD) M/% (SD) M/% (SD) M/% (SD)
Demographic        
  Age 36.4 (6.4) 35.5 (6.7) 35.3 (7.2) 34.4 (6.7)
  Gender (% female) 23 25 29 25
  Race (% non-white) 66 63 59 63
  Education 12.9 (2) 12.7 (2) 12.4 (1.9) 12.7 (2)
  Married 23 24 21 29
  Employed 41 44 41 53
Drug Use        
  Drug Composite 0.3 (0.1) 0.3 (0.1) 0.3 (0.1) 0.2 (0.1)
  Alcohol Composite 0.2 (0.2) 0.2 (0.2) 0.2 (0.2) 0.1 (0.2)
  Alcohol (Past 30 Days) 10.3 (10.3) 12.1 (10.5) 6.4 (8.9) 12.0 (5.5)
  Years Alcohol 11.6 (8.6) 11.9 (9.1) 12.2 (8.8) 12 (10.2)
  Cocaine (Past 30 Days) 12.7 (9.3) 12.3 (8.4) 12.5 (9.6) 13.1 (9.6)
  Years Cocaine 8 (5.3) 8 (5.3) 8.2 (5.1) 8 (5.4)
  Cocaine Route 78 78 75 81
  Drug Treatments 1 (1.4) 1.3 (2.2) 1.1 (1.8) 1.9 (3.2)
  % Cocaine + at intake 62 74 38 71
  Craving Score 73.2 (22.8) 70.2 (23) 71.3 (25.1) 65.3 (20.4)
  % High Motivation 23 19 35 17
Psychosocial        
  Family Composite 0.2 (0.2) 0.2 (0.2) 0.2 (0.2) 0.2 (0.3)
  Psychiatric Composite 0.1 (0.1) 0.1 (0.2) 0.1 (0.2) 0.2 (0.2)
  Employment Composite 0.5 (0.3) 0.5 (0.3) 0.5 (0.3) 0.4 (0.3)
  BDI Score 11.4 (5.6) 11.6 (5.8) 10.1 (5.4) 12.1 (5.5)
Legal        
  Legal Composite 0.2 (0.4) 0.2 (0.4) 0.2 (0.4) 0.4 (0.5)
  #of Convictions 25.5 (38.9) 15.1 (31.4) 14.7 (31.1) 1.7 (2.7)
  % Probation 11 15 10 25