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. Author manuscript; available in PMC: 2013 Mar 25.
Published in final edited form as: Addict Behav. 2009 Mar 27;34(10):806–814. doi: 10.1016/j.addbeh.2009.03.023

Table 2.

Comparisons of S/D and S/R Groups on Recent Drug Use and Lifetime Consequences

Variable S/D
(n=72)
S/R
(n=48)
Test p
Mean Days of Drug Use and Problems in the Last Month (SD)
  Days of cocaine use 6.64 (8.11) 0 Z=−8.25 p=.0001
  Days of heroin use 1.27 (4.24) 0 Z=−2.97 p=.003
  Days of marijuana use 1.23 (4.27) 0.70 (4.42) Z=−3.00 p=.003
  Days of drug-related problems 8.31 (11.86) 2.61 (6.64) Z=−3.45 p=.0006
  Rating of distress 1.77 (1.56) 1.09 (1.41) Z=−2.50 p=.012
Subscales from InDUC-Lifetime (MANOVA F=3.82, df=5/91, p=.0035)
  Physical 4.67 (2.36) 6.20 (1.84) F=11.85 p=.0009
  Interpersonal 3.58 (2.29) 5.48 (1.89) F=18.50 p=.0001
  Intrapersonal 3.96 (2.23) 5.18 (1.66) F=8.48 p=.0045
  Impulse control 4.25 (2.82) 6.60 (3.11) F=15.06 p=.0002
  Responsibility 2.75 (1.29) 3.53 (0.91) F=10.65 p=.0015