Shapiro 1998 d.
Methods | Same as Shapiro 1998b | |
Participants | Same as Shapiro 1998b ANALYSED: N = 52 |
|
Interventions | Same as Shapiro 1998b | |
Outcomes | Same as Shapiro 1998b | |
Notes | Same as Shapiro 1998b | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Insufficient information on sequence generation |
Allocation concealment (selection bias) | Unclear risk | Insufficient information |
Blinding of participants and personnel (performance bias) All outcomes | Low risk | Blinding of participants and key study personnel ensured |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Blinding of participants and key study personnel ensured |
Incomplete outcome data (attrition bias) All outcomes | Low risk | No missing outcome data |
Selective reporting (reporting bias) | Low risk | Study protocol not available but published reports include all expected outcomes, including those that were prespecified |
Other bias | Low risk | Study apparently free of other sources of bias |