Table 3 Risk of bias of included trials
From: Failure to report protocol violations in clinical trials: a threat to internal validity?
Methodological Characteristics | Percent (number) of Trials |
|---|---|
Details regarding generation of the randomisation sequence | 88.75% (71/80) |
Reporting of Allocation Concealment | |
Maintained | 52.5% (42/80) |
Unclear | 45.0% (36/80) |
Not maintained | 2.5% (2/80) |
Use of any type of blinding | 58.75% (47/80) |
Presentation of results according to ITT | 71.25% (57/80) |
Loss to follow-up reported by study arm | 92.50% (74/80) |