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. Author manuscript; available in PMC: 2011 Jul 20.
Published in final edited form as: Am J Drug Alcohol Abuse. 2009;35(2):63–67. doi: 10.1080/00952990802585380

Table 1.

Participant Demographic and Baseline Information for the Total Sample and by Detoxification Condition

Total Sample (N = 510) Brief Detox (n = 364) Extended Detox (n = 146) p
M Age (SD) 40.8 (7.0) 40.3 (7.0) 42.2 (6.8) .005
Male n (%) 293 (57.6%) 214 (59.0%) 79 (54.1%) .32
African American n (%) 492 (96.5%) 351 (96.4%) 141 (96.6%) .09
Never Married n (%) 293 (57.5%) 209 (57.4%) 84 (57.5%) .70
On Parole or Probation n (%) 156 (31.0%) 106 (29.6%) 50 (34.2%) .34
M Education, Years (SD) 11.7 (1.8) 11.7 (1.7) 11.6 (1.8) .69
M Arrests (SD) 4.3 (5.3) 3.4 (4.1) 6.7 (7.1) < .001
M Days Heroin use, past 30 (SD) 27.5 (6.7) 27.0 (7.6) 29.0 (3.2) < .001
M Years Regular Heroin Use, lifetime (SD) 13.0 (8.2) 11.6 (8.0) 16.3 (7.5) < .001
M Days Cocaine use, past 30 (SD) 7.4 (10.8) 6.5 (10.3) 9.6 (11.8) .006
M Years Regular Cocaine Use, lifetime (SD) 6.0 (7.7) 4.9 (7.0) 8.9 (8.7) < .001
M Number of Treatment Episodes (SD) 2.3 (1.8) 2.5 (1.8) 1.8 (1.7) < .001

Note: χ2 goodness-of-fit tests were used for dichotomous variables and independent-samples t-tests were used for continuous variables.