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Osteoarthritis - Evidence
RCT (randomized controlled trial)
A randomized controlled trial (RCT) is a study in which one or more interventions are compared to a control intervention (or no intervention), and participants are randomly allocated to a treatment or control intervention group.
- In most trials one intervention is assigned to each individual but sometimes assignment is to defined groups of individuals (for example, in a household) or interventions are assigned within individuals (for example, to different parts of the body or to a particular sequence of study treatments).
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