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Table 2 Recall and recall-to-yield ratio

From: Identifying quality improvement intervention publications - A comparison of electronic search strategies

Search strategy Recall AHRQ
set
(n = 25)
Recall SQUIRE set
(n = 29)
Recall EPOC set
(n = 26)
Recall Across sets Recall:Yield Ratio
Strategy #1:QI text words, simple (quality AND improv* AND intervention*)
(PubMed)
11
(44%)
7
(24%)
16
(62%)
43% 0.00319
Strategy #2: QI text words, simple ((quality AND improv$ AND intervention$).mp) MEDLINE, Ovid) 10
(40%)
5
(17%)
14
(54%)
37% 0.00287
Strategy #3: QI text words, synonyms (PubMed) 12
(48%)
10
(34%)
20
(77%)
53% 0.00148
Strategy #6: QI text words, synonyms AND MeSH terms;
(MEDLINE, Ovid)
7
(28%)
6
(21%)
9
(35%)
28% 0.00361
Strategy #8: QI text words, synonyms AND Intervention components
(MEDLINE, Ovid)
11
(44%)
9
(31%)
9
(35%)
37% 0.00337
Strategy #9: CQI methods
(MEDLINE, Ovid)
2
(7%)
2
(7%)
0
(0%)
5% 0.00210
Strategy #10: Combined approach
(MEDLINE, Ovid)
8
(32%)
9
(31%)
14
(54%)
39% 0.00236
  1. * notates truncation; Recall: Number of identified reference set publications; Recall:Yield Ratio: % recall across reference sets divided by total yield