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Evidence base included in the review
| Category |
Number of records |
|
|---|---|---|
| Full papers | Abstracts | |
| Initial search | 3 | 0 |
| Additional papers identified | 1 (comment) | 0 |
| Search update, new records | 1 | 0 |
| Level 1 clinical evidence | 0 | 0 |
| Level 2 | 4 | 0 |
| Level ≥ 3 | 0 | 0 |
| Economic evidence | 0 | 0 |
| Total records included | 4 | 0 |
