Table 3 Completeness of primary outcome pre-specification in a random sample of 150 SRs registered in PROSPERO between April 1, 2017 and September 30, 2017
From: Registration of systematic reviews in PROSPERO: 30,000 records and counting
Components of outcome | Number (%) all SRs | Number (%) therapeutic SRs | Number (%) non-therapeutic SRs | Risk ratio (95% CI) |
|---|---|---|---|---|
n = 150 | n = 78 | n = 72 | ||
Domain | 150 (100%) | 78 (100%) | 72 (100%) | NA |
Specific measurement | 65 (43%) | 35 (45%) | 30 (42%) | 1.08 (0.75, 1.56) |
Specific metric | 63 (42%) | 31 (40%) | 32 (44%) | 0.89 (0.61, 1.30) |
Method of aggregation | 69 (46%) | 36 (46%) | 33 (46%) | 1.01 (0.71, 1.42) |
Time point | 25 (17%) | 20 (26%) | 5 (7%) | 3.69 (1.46, 9.32) |
Only domain specified | 44 (29%) | 21 (27%) | 23 (32%) | 0.84 (0.51, 1.39) |
Outcome completely pre-specified | 9 (6%) | 7 (9%) | 2 (3%) | 3.23 (0.69, 15.04) |