Table 1.
Summary of general characteristics of the studies.
| Study Characteristics | Number of Studies Identified (%) | |
|---|---|---|
| Year of publication | ||
| 2001–2009 | 17 (44) | |
| 2010–2017 | 22 (56) | |
| Study approach | ||
| Trial-based | Prevention | 9 (23) |
| Treatment | 7 (18) | |
| Model-based | Prevention | 19 (49) |
| Treatment | 4 (10) | |
| Comparator selected | ||
| Usual care | 33 (85) | |
| Another intervention | 6 (15) | |
| Country | ||
| High-income | ||
| Australia | 15 (38.5) | |
| New Zealand | 2 (5) | |
| The USA | 12 (31.5) | |
| Canada | 1 (2.5) | |
| The UK | 4 (10) | |
| Germany | 2 (5) | |
| Finland | 1 (2.5) | |
| Spain | 1 (2.5) | |
| Low and middle-income | ||
| China | 1 (2.5) | |
| Setting | ||
| Prevention | ||
| School | 21 (54) | |
| US/Australian state | 5 (13) | |
| Community | 1 (2.5) | |
| Home | 1 (2.5) | |
| Treatment | ||
| Clinical | 9 (23) | |
| School | 1 (2.5) | |
| Community | 1 (2.5) | |