Single Blind Trial

Definition

Health Economics

  • A trial in which the patient (or clinician) is aware of which arm the patient is in but the clinician (or patient) is not. In some situations it is the adjudicator of the outcome who is blinded to the treatment assignment instead of patients and clinicians. For example, in a trial comparing surgery to watchful waiting, both the patient and the surgeon are likely to be aware of the treatment assignment, but the radiologist-adjudicator may not be.
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