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Table 1 Recall of each strategy across databases

From: Finding qualitative research: an evaluation of search strategies

  Potentially relevant ("tested positive") records identified by each strategy Recall: Potentially relevant records ("tested positive") as a percentage (number) of total initial yield
1)Thesaurus 3537 47.6% (3537/7420)
2)Free-text 3451 46.5% (3451/7420)
3)Broad-based 3912 52.7% (3912/7420)
Total initial yield (duplicates and non-human eliminated) 7420 -