STENO‐2 Study 1999.
Methods |
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Participants |
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Interventions | Treatment group
Control group
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Outcomes |
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Notes |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Block randomisation (groups of 4 with 2 in each treatment arm and thus allowed a maximum difference of two patients per group per stratum) |
Allocation concealment (selection bias) | Low risk | Performed with the use of sealed envelopes |
Blinding of participants and personnel (performance bias) All outcomes | High risk | Open‐label |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | All endpoints specified in the protocol were adjudicated by an independent committee whose members were unaware of the patients’ treatment assignments |
Incomplete outcome data (attrition bias) All outcomes | Unclear risk | 3/160 lost to follow‐up (2%) |
Selective reporting (reporting bias) | Low risk | Important patient‐level outcomes provided |
Other bias | High risk | Data not independent of sponsor |