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. 2006;38(2):194-9.
doi: 10.1111/j.1547-5069.2006.00100.x.

Optimal CINAHL search strategies for identifying therapy studies and review articles

Sharon S L Wong  1 , Nancy L Wilczynski, R Brian Haynes
Affiliations

Optimal CINAHL search strategies for identifying therapy studies and review articles

Sharon S L Wong et al. J Nurs Scholarsh. 2006.

Abstract

Purpose: To design optimal search strategies for locating sound therapy studies and review articles in CiNAHL in the year 2000.

Design and methods: An analytic survey was conducted, comparing hand searches of 75 journals with retrievals from CINAHL for 5,020 candidate search terms and 17,900 combinations for therapy and 5,977 combinations for review articles. All articles were rated with purpose and quality indicators. Candidate search strategies were used in CINAHL, and the retrievals were compared with results of the hand searches. The proposed search strategies were treated as "diagnostic tests" for sound studies and the manual review of the literature was treated as the "gold standard." Operating characteristics of the search strategies were calculated.

Findings: Of the 1,383 articles about treatment, 506 (36.6%) met basic criteria for scientific merit and 127 (17.9%) of the 711 articles classified as a review met the criteria for systematic reviews. For locating sound treatment studies, a three-term strategy maximized sensitivity at 99.4% but with compromised specificity at 58.3%, and a two-term strategy maximized specificity at 98.5% but with compromised sensitivity at 52.0%. For detecting systematic reviews, a three-term strategy maximized sensitivity at 91.3% while keeping specificity high at 95.4%, and a single-term strategy maximized specificity at 99.6% but with compromised sensitivity at 42.5%. Three-term search strategies optimizing sensitivity and specificity achieved these values over 91% for detecting sound treatment studies and over 76% for detecting systematic reviews.

Conclusions: Search strategies combining indexing terms and text words can achieve high sensitivity and specificity for retrieving sound treatment studies and review articles in CINAHL.

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