Table 1.
Evidence base included in the review
| Category |
Number of records |
|
|---|---|---|
| Full papers | Abstracts | |
| Initial search | 116 | |
| Records excluded | 11 | |
| Records included | 105 | |
| Total records included | 10 | 4 |
| Level 1 clinical evidence (systematic review, meta analysis) | 0 | 0 |
| Level 2 clinical evidence (RCT) | 5 | 1 |
| Level ≥ 3 clinical evidence | ||
| Trials other than RCT | 2 | |
| Case reports | ||
| Other outcome than depression | 3 | 3 |
| Economic evidence | 0 | |
For definitions of levels of evidence, see Core Evidence website (http://dovepress.com/core-evidence-journal).
Abbreviation: RCT, randomized controlled trial.