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. Author manuscript; available in PMC: 2014 Jun 5.
Published in final edited form as: J Behav Health Serv Res. 2011 Apr;38(2):221–233. doi: 10.1007/s11414-010-9224-9

Table 2.

Baseline characteristics of patients by treatment group

No Treatment Informal Treatment Only Formal Treatment Only Both Formal and Informal Treatment
N=126 N=12 N=10 N=21

Variables Percentage/ Mean (SD) Percentage/ Mean (SD) Percentage/ Mean (SD) Percentage/ Mean (SD)
Socio-Economic Variables

Age 38.6 (9.4) 37.3 (5.9) 35.2 (8.0) 39.7 (7.3)
Male 57 % 50 % 50 % 76 %
African American 79 % 58 % 80 % 86 %
Never Married/Single 77 % 92 % 90 % 86 %
High School Graduate 53 % 67 % 50 % 81 %
Employed 38 % 42 % 30 % 33 %
Income Category
 Less than $10,000 33 % 33 % 60 % 48 %
 $10,000-$19,999 37 % 50 % 40 % 33 %
 $20,000 or more 30 % 17 % 0 % 19 %

Need Variables

Met lifetime substance dependence criteria (0/1) 72 % 83 % 80 % 100 %
Met lifetime substance abuse criteria (0/1) 11 % 8 % 20 % 0 %
# of drinking days in prior 4 weeks (0-28) 10.8 (10.3) 8.2 (9.4) 11.5 (10.7) 11.3 (10.8)
# of days using cocaine in prior 4 weeks (0-28) 5.9 (7.5) 3.0 (2.8) 12.1 (12.2) 12.5 (10.4)
Number of Medical comorbidities (0-22) 1.7 (1.9) 1.8 (1.9) 1.7 (1.9) 2.0 (1.66)
Psychiatric comorbidities (0-4)
 Somatization 1.0 (0.8) 0.9 (0.8) 1.4 (0.8) 1.7 (1.2)
 Obsessive-Compulsive Disorder 0.8 (0.9) 1.1 (1.0) 1.5 (0.9) 1.5 (1.0)
 Interpersonal sensitivity 0.8 (1.0) 1.2 (1.3) 1.5 (1.3) 1.3 (1.2)
 Depression 1.0 (1.0) 1.3 (1.3) 2.2 (1.0) 2.0 (1.1)
 Anxiety 0.9 (0.9) 1.2 (1.1) 1.7 (0.8) 1.3 (0.9)
 Hostility 0.7 (0.9) 0.7 (0.9) 1.3 (1.0) 1.2 (0.9)
 Phobic anxiety 0.4 (0.7) 0.9 (1.0) 1.1 (1.2) 0.6 (0.7)
 Paranoid ideation 0.8 (0.9) 1.0 (1.0) 1.3 (1.0) 1.4 (1.1)
 Psychoticism 0.6 (0.8) 1.0 (1.1) 1.6 (1.0) 1.5 (1.1)
 Additional items 1.1 (1.0) 1.1 (1.2) 2.2 (1.0) 2.1 (1.1)
 Global severity index 0.8 (0.7) 1.0 (0.9) 1.6 (0.9) 1.5 (0.8)
Antisocial personality disorder (0/1) 26 % 42 % 50 % 43 %
SF-36 (0-100)
 Mental health component score 53.9 (25.8) 44.2 (27.7) 42.0 (21.0) 41.7 (19.8)
 Physical health component score 59.0 (29.0) 49.3 (27.8) 53.0 (26.6) 51.0 (25.5)

Barriers to Care Variables

 Geographical/Financial barriers (1-3) 0.3 (0.6) 0.3(0.5) 0.0 (0.0) 0.6 (0.7)
 Temporal barriers (1-5) 0.1 (0.3) 0.1(0.3) 0.1 (0.3) 0.2 (0.4)
 Stigma barriers (1-5) 0.1 (0.3) 0.2(0.4) 0.2 (0.6) 0.4 (0.8)
 Treatment ineffective/unacceptable (1-4) 0.1 (0.3) 0.2(0.4) 0.2 (0.6) 0.2 (0.5)
 Lack of perceived need (1-3) 0.5 (0.5) 0.2(0.4) 0.2 (0.4) 0.4 (0.6)

Cue Variables

Negative life events 2.93 (2.4) 3.0 (2.0) 2.3 (2.5) 3.4 (2.6)
Consequences of Substance Abuse (0-9 scale)
 Physical consequences 2.8 (2.8) 3.1 (3.0) 5.8 (2.7) 5.6 (2.9)
 Interpersonal consequences 2.6 (3.1) 3.6 (3.3) 6.1 (3.1) 6.4 (3.1)
 Intrapersonal consequences 3.6 (3.2) 3.7 (3.5) 6.4 (2.7) 6.7 (2.6)
 Impulse control consequences 2.1 (2.2) 2.0 (2.1) 3.6 (2.4) 4.8 (2.5)
 Social responsibility consequences 3.3 (2.9) 3.2 (3.1) 6.1 (2.9) 6.5 (2.6)

Readiness to Change Variables

Stages of change
Ambivalence/recognition scale (11-55) 36.8 (12.1) 39.6 (12.0) 47.7 (6.7) 47.4 (7.0)
Taking Steps scale (8-40) 27.6 (7.2) 29.3 (4.4) 24.4 (8.0) 27.2 (7.9)
Social Support
 Average of all types of support (1-5) 4.2 (0.96) 4.4 (0.63) 4.5 (0.65) 3.7 (1.25)
 Sobriety support (0-100) 36.1 (28.6) 41.3 (31.5) 51.0 (27.5) 52.3 (26.6)
Prior Treatment
 Formal treatment in prior 12 months (0/1) 8 % 33 % 10 % 33 %
 Informal treatment in prior 12 months (0/1) 9 % 42 % 10 % 33 %