View analysis by clicking on the link above. Reviews and meta-analyses have found brief interventions effective in moderating excessive drinking. Typically the reviewed trials have identified risky drinkers by asking a few standard questions (screening) when they attended medical or other services for other purposes, and then briefly counselled or advised them (brief intervention) for from five minutes to half an hour to prompt them to reconsider their drinking. Reviews have, however, conflated data from European studies with those from non-European countries, where health systems and drinking cultures and contexts may be very different.