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Table 4 Abstinence outcome over time among crack dependent individuals

From: Contingency management is effective in promoting abstinence and retention in treatment among crack cocaine users with a previous history of poor treatment response: a crossover trial

  Default Multiple imputation (pooled datasets)
OR* 95% CI SE p value OR* p value
Treatment condition 4.87 1.56–15.21 2.83 0.006 7.39 0.003
Age 1.01 0.93–1.09 0.04 0.79 1.02 0.35
Alcohol dependence 0.48 0.12–1.98 0.35 0.31 0.27 0.02
Gender 1.38 0.19–9.87 1.38 0.75 1.41 0.65
Baseline urine result 1.12 0.38–3.30 0.62 0.84 2.37 0.01
Time 0.98 0.95–1.00 0.01 0.33 0.96 0.01
  1. *The reference was the usual care condition. OR odds ratio, CI confidence interval