Table 2 Brief intervention (BI) versus treatment as usual

2.1 Continuous outcomes

Mean Difference (IV, Fixed, 95% CI)

Subtotals only

2.1.1 Alcohol use as AUDIT scores at three months

1

110

Mean Difference (IV, Fixed, 95% CI)

0.10 [-2.96, 3.16]

2.1.2 Alcohol use as AUDIT Scores at nine months

1

110

Mean Difference (IV, Fixed, 95% CI)

1.50 [-1.74, 4.74]

2.1.3 Alcohol use as number of drinks per week at three months

1

110

Mean Difference (IV, Fixed, 95% CI)

2.40 [-4.59, 9.39]

2.1.4 Alcohol use as number of drinks per week at nine months

1

110

Mean Difference (IV, Fixed, 95% CI)

−1.70 [-8.93, 5.53]

2.2 Dichotomous outcomes

Risk Ratio (M-H, Fixed, 95% CI)

Subtotals only

2.2.1 Alcohol use as decreased alcohol use at three months

1

110

Risk Ratio (M-H, Fixed, 95% CI)

0.32^a [0.19, 0.54]

2.2.2 Alcohol use as decreased alcohol use at nine months

1

110

Risk Ratio (M-H, Fixed, 95% CI)

0.16^a [0.08, 0.33]