Table 2.

Databases used to search for relevant literature

Database	Results
MEDLINE	89
CINAHL	82
PUBMED	76
EMBASE	23
Science Direct	10
Wiley Online Library	30
BMJ	39
Google Scholar	113
EBSCO	28
OVID	34
Cochrane Library	15
PshychiNFO	26
Grey Literature	12
Total number of articles	577