Methodological trial characteristic | Risk of Bias judgement according to review authors | ||||||
---|---|---|---|---|---|---|---|
Total | Low | Unclear | High | ||||
N | N | % | N | % | N | % | |
Random sequence generation | 831 | 618 | 74.4 | 205 | 24.7 | 8 | 0.9 |
Allocation concealment | 925 | 541 | 58.5 | 370 | 40.0 | 14 | 1.5 |
Blinding of participants and personnel | 430 | 264 | 61.4 | 88 | 20.5 | 78 | 18.1 |
Blinding of outcome assessment | 500 | 348 | 69.6 | 136 | 27.2 | 16 | 3.2 |
Incomplete outcome data | 872 | 583 | 66.9 | 149 | 17.1 | 140 | 16.0 |
Selective reporting | 567 | 369 | 65.1 | 147 | 25.9 | 51 | 9.0 |
Dietary compliance | 234 | 119 | 50.9 | 100 | 42.7 | 15 | 6.4 |