Table 2 Reporting quality of key methodological items (n = 98)
From: Quality of reporting on randomized controlled trials on recurrent spontaneous abortion in China
Item | Criteria | Description | No. of positive trials | % | Cohen’sкcoefficient | 95% CI |
|---|---|---|---|---|---|---|
9 | Allocation concealment | Description of the method used to implement the random allocation sequence assuring the concealment until interventions are assigned | 1 | 1 | 1.00 | - |
11 | Blinding | Whether or not participants, those administering the interventions or those assessing the outcomes were blinded to group assignment | 1 | 1 | 0.68 | 0.50 to 0.96 |
16 | Intention-to-treat analysis | No. of participants in each group included in each analysis and whether it was done by “intention to treat” | 69 | 70 | 0.72 | 0.45 to 0.98 |