Table 1

Recommendations, levels of evidence and level of agreement (LOA)

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  • Categories of evidence: Ia, evidence for meta-analysis of randomised controlled trials; Ib, evidence from at least one randomised controlled trial; IIa, evidence from at least one controlled study without randomisation; IIb, evidence from at least one other type of quasi-experimental study; III, evidence from non-experimental descriptive studies, such as comparative studies, correlation studies and case–control studies; IV, evidence from expert committee reports or opinions or clinical experience of respected authorities, or both LOA: 0–10 numerical rating scale.

  • *Typical features include usage-related pain, short duration morning stiffness, age >40, symptoms affecting one or a few joints.

  • OA, osteoarthritis; US, ultrasonography.