2.3 Search strategy
The search strategy had three main terms which were extracted from the
research title. They included expectations, low back pain andtreatment outcome(s) . For all databases (except PEDro and
PubMed), the search terms for the three main terms were mapped to MeSH
terms or subject headings whenever possible. If MeSH terms or subject
headings were not available, key words within the database itself were
used when possible and if not, synonyms were used. Synonyms were only
used when neither MeSH terms, subject headings nor key words were
available. Synonyms were only needed for the term expectations .
Appendix 1 provides descriptions of all the searches conducted in each
database with the number of results and the dates of each search.