Table 7 Performance of Specificity Filters against Validation Sets.
From: Identifying observational studies of surgical interventions in MEDLINE and EMBASE
MEDLINE | EMBASE | MEDLINE/EMBASE Deduplicated | ||||
|---|---|---|---|---|---|---|
No filter | Filter | No filter | Filter | No filter | Filter | |
PRK | ||||||
Reference Standard | 39 | 39 | 33 | 32 | 39 | 39 |
Total retrieved | 682 | 452 | 503 | 393 | 792 | 567 |
Reference standard retrieved (%) | 100.0 | 97.0 | 100.0 | |||
Reduction in retrievals (%) | 33.7 | 21.9 | 28.4 | |||
Tonsillectomy | ||||||
Reference Standard | 27 | 23 | 27 | 26 | 30 | 30 |
Total retrieved | 1466 | 886 | 1213 | 852 | 1712 | 1196 |
Reference standard retrieved (%) | 85.2 | 96.3 | 100.0 | |||
Reduction in retrievals (%) | 39.6 | 29.8 | 30.1 | |||