Table 1 Electronic databases for the primary searches
Host | Database | Dates covered | Date searched (Stage 1) | Date searched (Stage 2) |
|---|---|---|---|---|
Ovid | Ovid MEDLINE(R) and Epub Ahead of Print, In-Process & Other Non-Indexed Citations, Daily and Versions(R) | 1946 to Present | 8th July 2020 | 2nd November 2020 |
Ovid | Embase | 1974 to Present | 8th July 2020 | 2nd November 2020 |
Wiley | Cochrane Database of Systematic Reviews (Cochrane Library) | CDSR 1996 to Present | 8th July 2020 | 2nd November 2020 |
Wiley | Cochrane Central Register of Controlled Trials (Cochrane Library) | CENTRAL 1898 to Present | 8th July 2020 | 2nd November 2020 |
EBSCO | CINAHL | 1974 to Present | 9th July 2020 | 2nd November 2020 |
Ovid | PsycINFO | 1806 to Present | 8th July 2020 | 2nd November 2020 |