Errors in search strategies were identified by type and frequency

Ref ID 409
First Author M. Sampson
Year Of Publishing 2006
Keywords Cochrane
General medical
Problem(s) Errors or omissions in search strategy
Number of systematic reviews included 105
Summary of Findings Most (90.5%) of the assessed search strategies contained at least one error. Errors that could potentially lower recall of relevant studies were found in 82.5% and inconsequential errors (to the evidence base) were found in 60.3% of the search strategies. The most common search errors were missed MeSH terms (44.4%), unwarranted explosion of MeSH terms (38.1%), and irrelevant MeSH or free text terms (28.6%). Missed spelling variants, combining MeSH and free text terms in the same line, and failure to tailor the search strategy for other databases occurred with equal frequency (20.6%). Logical operator error occurred in 19.0% of searches.
Did the article find that the problem(s) led to qualitative changes in interpretation of the results? Not Applicable
Are the methods of the article described in enough detail to replicate the study? Yes