Outcome or subgroup | Studies | Participants | Statistical method | Effect estimate |
---|---|---|---|---|
1.1 Continuous outcomes | Â | Â | Mean Difference (IV, Fixed, 95% CI) | Subtotals only |
1.1.1 Alcohol abstinence as maximum number of weeks of consecutive alcohol abstinence during treatment | 1 | 41 | Mean Difference (IV, Fixed, 95% CI) | 0.40 [-1.14, 1.94] |
1.1.2 Illicit drug abstinence as maximum number of weeks of consecutive abstinence from cocaine during treatment | 1 | 41 | Mean Difference (IV, Fixed, 95% CI) | 0.80 [-0.70, 2.30] |
1.2 Dichotomous outcomes | Â | Â | Risk Ratio (M-H, Fixed, 95% CI) | Subtotals only |
1.2.1 Alcohol abstinence as number achieving three or more weeks of consecutive alcohol abstinence during treatment | 1 | 41 | Risk Ratio (M-H, Fixed, 95% CI) | 1.96 [0.43, 8.94] |
1.2.2 Illicit drug abstinence as number achieving three or more weeks of consecutive abstinence from cocaine during treatment | 1 | 41 | Risk Ratio (M-H, Fixed, 95% CI) | 1.10 [0.42, 2.88] |
1.2.3 Alcohol abstinence during follow-up year | 1 | 41 | Risk Ratio (M-H, Fixed, 95% CI) | 2.38 [0.10, 55.06] |
1.2.4 Illicit drug abstinence as abstinence from cocaine during follow-up year | 1 | 41 | Risk Ratio (M-H, Fixed, 95% CI) | 0.39 [0.04, 3.98] |