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Published online 2021 Oct 1. doi: 10.5195/jmla.2021.1219
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Table 4

Overview of the original intervention study search filter's performance in PubMed and Embase in the validation reference gold standard

PubMed
Relevant records in a retrospective search (= gold standard, a+b): 73Irrelevant records in a retrospective search (c+d): 10,512
Records retrieved with search filter (a+c): 3,957True positives (a): 66False positives (c): 3,891
Records not retrieved with search filter: 6,628False negatives (b): 7True negatives (d): 6,621
Embase
Relevant records in a retrospective search (= gold standard, a+b): 70Irrelevant records in a retrospective search: 16,586
Records retrieved with search filter (a+c): 7,403True positives (a): 63False positives (c): 7,340
Records not retrieved with search filter: 9,253False negatives (b): 7True negatives (d): 9,246
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