Table 2.
Summary of study characteristics
| Trials | ||
|---|---|---|
| Setting of intervention | ||
| A&E | 20% | 10 |
| Non-health settings | 12% | 6 |
| Ambulatory or primary care | 38% | 19 |
| Hospital inpatient services | 10% | 5 |
| University | 20% | 10 |
| Provider | ||
| Counsellor/mental health clinician | 44% | 22 |
| Different providers | 8% | 4 |
| GP | 22% | 11 |
| Nurse | 18% | 9 |
| Peer intervention | 4% | 2 |
| Combination | 12% | 6 |
| GP and nurse | 8% | 4 |
| GP and counsellor | 4% | 2 |
| Content | ||
| Brief advice | 24% | 12 |
| Motivational interviewing | 48% | 24 |
| Motivational interviewing ‘plus’ | 40% | 20 |
| Outcomes | ||
| Quantity | 50 | |
| Mean follow-up in months (SD) | 9.0 (8.3) | |
| Quantity per unit time | 94% | 47 |
| Quantity per drinking occasion | 30% | 15 |
| Frequency | 26 | |
| Mean follow-up in months (SD) | 11.1 (10.5) | |
| Frequency of any drinking occasion per unit time | 32% | 16 |
| Frequency of binge drinking occasions per unit time | 30% | 15 |
A&E, accident and emergency; GP, general practice.