Table 2.
Performance of bibliographic databases identifying relevant systematic reviews of interventions for treating hypertension (excluding non-conventional treatments)
| Database | Reviews relevant | Reviews missed | Total citations | Sensitivity (s) % | Precision (Pr) % | Unique records |
|---|---|---|---|---|---|---|
| EMBASE | 169 | 63 | 3722 | 72.8 | 4.5 | 34 |
| Cochrane | 143 | 89 | 704 | 61.6 | 20.3 | 7 |
| MEDLINE | 138 | 94 | 2282 | 59.5 | 6.0 | 0 |
| DARE | 127 | 105 | 998 | 54.7 | 12.7 | 0 |
| PubMed Health | 126 | 106 | 812 | 54.3 | 15.5 | 0 |
| Epistemonikos | 116 | 116 | 938 | 50.0 | 12.4 | 0 |
| TRIP | 72 | 160 | 1320 | 31.0 | 5.5 | 0 |
Reference set of included systematic review (n = 232)