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. 2016 Jul 18;2016(7):CD007025. doi: 10.1002/14651858.CD007025.pub4

Comparison 6. Subgroup analysis: participant risk at ≥ 4 months or more of follow‐up.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Quantity of alcohol consumed 33 7971 Std. Mean Difference (Random, 95% CI) ‐0.11 [‐0.15, ‐0.06]
1.1 Higher risk only 26 6494 Std. Mean Difference (Random, 95% CI) ‐0.12 [‐0.17, ‐0.07]
1.2 All/low risk 7 1477 Std. Mean Difference (Random, 95% CI) ‐0.06 [‐0.20, 0.07]
2 Frequency of alcohol consumption 17 4377 Std. Mean Difference (Random, 95% CI) ‐0.14 [‐0.21, ‐0.07]
2.1 Higher risk only 14 3944 Std. Mean Difference (Random, 95% CI) ‐0.15 [‐0.23, ‐0.07]
2.2 All/low risk 3 433 Std. Mean Difference (Random, 95% CI) ‐0.07 [‐0.29, 0.15]
3 Binge drinking 21 5479 Std. Mean Difference (Random, 95% CI) ‐0.04 [‐0.10, 0.01]
3.1 Higher risk only 16 4352 Std. Mean Difference (Random, 95% CI) ‐0.06 [‐0.12, 0.01]
3.2 All/low risk 5 1127 Std. Mean Difference (Random, 95% CI) ‐0.00 [‐0.12, 0.12]
4 Alcohol problems 25 6868 Std. Mean Difference (Random, 95% CI) ‐0.08 [‐0.17, ‐0.00]
4.1 Higher risk only 22 6384 Std. Mean Difference (Random, 95% CI) ‐0.11 [‐0.19, ‐0.03]
4.2 All/low risk 3 484 Std. Mean Difference (Random, 95% CI) 0.14 [‐0.15, 0.43]