Table 1. Characteristics of trials (n = 60).
| Characteristics | Total number of Trials titirald |
% | |
|---|---|---|---|
| Journal | High IF journals | 26 | 43.3 |
| Other IF journals | 34 | 56.7 | |
| Region | North America | 37 | 61.7 |
| Europe | 14 | 23.3 | |
| Cross-continental | 2 | 3.3 | |
| Africa | 2 | 3.3 | |
| Asia | 2 | 3.3 | |
| Oceania | 1 | 1.7 | |
| Interventions |
Non-drug therapy | 36 | 60.0 |
| Drug therapy | 16 | 26.7 | |
| Combination | 8 | 13.3 | |
| Sponsorship by for-profit entity |
No | 48 | 80.0 |
| Yes | 9 | 15.0 | |
| Unclear | 3 | 5.0 | |
| Design | Superiority | 58 | 96.7 |
| Non-inferiority | 2 | 3.3 | |
| Included disorders | Problems related to substance use disorders |
19 |
31.7 |
| Mood disorders | 11 | 18.3 | |
| Cognitive disorders | 4 | 6.7 | |
| Schizophrenia | 2 | 3.3 | |
| Others | 24 | 40.0 |