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2015 ; 4
(ä): 82
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Improving search efficiency for systematic reviews of diagnostic test accuracy:
an exploratory study to assess the viability of limiting to MEDLINE, EMBASE and
reference checking
#MMPMID26113080
Preston L
; Carroll C
; Gardois P
; Paisley S
; Kaltenthaler E
Syst Rev
2015[Jun]; 4
(ä): 82
PMID26113080
show ga
BACKGROUND: Increasing numbers of systematic reviews evaluating the diagnostic
test accuracy of technologies are being published. Currently, review teams tend
to apply conventional systematic review standards to identify relevant studies
for inclusion, for example sensitive searches of multiple bibliographic
databases. There has been little evaluation of the efficiency of searching only
one or two such databases for this type of review. The aim of this study was to
assess the viability of an approach that restricted searches to MEDLINE, EMBASE
and the reference lists of included studies. METHODS: A convenience sample of
nine Health Technology Assessment (HTA) systematic reviews of diagnostic test
accuracy, with 302 included citations, was analysed to determine the number and
proportion of included citations that were indexed in and retrieved from MEDLINE
and EMBASE. An assessment was also made of the number and proportion of citations
not retrieved from these databases but that could have been identified from the
reference lists of included citations. RESULTS: 287/302 (95 %) of the included
citations in the nine reviews were indexed across MEDLINE and EMBASE. The
reviews' searches of MEDLINE and EMBASE accounted for 85 % of the included
citations (256/302). Of the forty-six (15 %) included citations not retrieved by
the published searches, 24 (8 %) could be found in the reference lists of
included citations. Only 22/302 (7 %) of the included citations were not found by
the proposed, more efficient approach. CONCLUSIONS: The proposed approach would
have accounted for 280/302 (93 %) of included citations in this sample of nine
systematic reviews. This exploratory study suggests that there might be a case
for restricting searches for systematic reviews of diagnostic test accuracy
studies to MEDLINE, EMBASE and the reference lists of included citations. The
conduct of such reviews might be rendered more efficient by using this approach.
|Databases, Bibliographic/*statistics & numerical data
[MESH]
|Diagnostic Tests, Routine/*statistics & numerical data
[MESH]