Table 4 Indirect Subgroup Analyses: Precision
From: Which resources should be used to identify RCT/CCTs for systematic reviews: a systematic review
Subgroups | Â | MEDLINE vs. Handsearching | MEDLINE vs. MEDLINE + Handsearching | MEDLINE vs. Reference Standard | |||
|---|---|---|---|---|---|---|---|
| Â | Â | N | Median (Range) | N | Median (Range) | N | Median (Range) |
Search Strategy | Cochrane | 7 | 9 (0.03,76) | 3 | 48 (13,49) | 3 | 7 (1,7) |
| Â | Complex | 12 | 38 (22,78) | 3 | 51 (13,59) | 9 | 35 (3,91) |
| Â | Simple | 4 | 76 (68,99) | 2 | (40,83) | 5 | 23 (1,65) |
Author | Cochrane | 7 | 9 (0.03,76) | 3 | 48 (13,49) | 3 | 7 (1,7) |
| Â | Librarian | 1 | 34 | 0 | -- | 2 | (53,72) |
| Â | Non-librarian | 15 | 50 (22,99) | 5 | 51 (13,83) | 12 | 29 (1,91) |
Design | RCT | 12 | 43 (22,79) | 0 | -- | 7 | 7 (1,91) |
| Â | CCT | 11 | 28 (0.03,99) | 8 | 49 (13,83) | 10 | 33 (7,72) |