Brief intervention v control for potentially excessive drinking in older adults*

Outcomes at 12 monthsIntervention (baseline)Control (baseline)Mean difference (95% CI)
*Abbreviations defined in glossary; mean difference, RRR, NNT, and CI calculated from data in article.
Number of drinks in previous 7 days9.9 (15.5)16.3 (16.6)6.4 (3.2 to 9.6)
RRR (CI) NNT (CI)
Binge drinking in previous 30 days31% (49%)49% (40%)38% (6.2 to 59)6 (3 to 40)
Excessive drinking in previous 7 days15% (29%)34% (30%)55% (18 to 76)6 (3 to 20)