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2015 ; 8
(ä): 153
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Web searching for systematic reviews: a case study of reporting standards in the
UK Health Technology Assessment programme
#MMPMID25889619
Briscoe S
BMC Res Notes
2015[Apr]; 8
(ä): 153
PMID25889619
show ga
BACKGROUND: Identifying literature for a systematic review requires searching a
variety of sources. The main sources are typically bibliographic databases. Web
searching using search engines and websites may be used to identify grey
literature. Searches should be reported in order to ensure transparency and
reproducibility. This study assesses the reporting of web searching for
systematic reviews carried out by the National Institute for Health Research
(NIHR) Health Technology Assessment (HTA) programme (UK). The study also makes
recommendations about reporting web searching for systematic reviews in order to
achieve a reasonable level of transparency and reproducibility. METHODS:
Systematic reviews were identified by searching the HTA database via the Centre
for Reviews and Dissemination (CRD) website. Systematic reviews were included in
the study if they made reference to searching the web using either search engines
or websites. A data-extraction checklist was designed to record how web searching
was reported. The checklist recorded whether a systematic review reported: the
names of search engines or websites; the dates they were searched; the search
terms; the results of the searches; and, in the case of websites, whether a URL
was reported. RESULTS: 554 HTA reports published between January 2004 and
December 2013 were identified. 300 of these reports are systematic reviews, of
which 108 report web searching using either a search engine or a website.
Overall, the systematic reviews assessed in the study exhibit a low standard of
web search reporting. In the majority of cases, the only details reported are the
names of websites (n?=?54) or search engines (n?=?33). A small minority (n?=?6)
exhibit the highest standard of web search reporting. CONCLUSIONS: Most web
search reporting in systematic reviews carried out on the UK HTA programme is not
detailed enough to ensure transparency and reproducibility. Transparency of
reporting could be improved by adhering to a reporting standard such as the
standard detailed in the CRD systematic reviews methods guidance. Reproducibility
is harder to achieve due to the frequency of changes to websites and search
engines.
|Data Mining/*statistics & numerical data
[MESH]
|Databases, Bibliographic/*statistics & numerical data
[MESH]