Medical management plus cognitive behavioural therapy (CBT) v medical management alone (control) for patients with rheumatoid arthritis†

Outcomes at 6 monthsCBTControlRRR (95% CI)NNT (CI)
†RAI=Ritchie Articular Index. Other abbreviations defined in glossary; RRR, RBI, NNT, and CI calculated from data in article.
>25% deterioration in symptoms (RAI score)4%27%84% (10 to 97)5 (3 to 57)
No change in RAI score48%55%12% (−56 to 51)Not significant
≥25% improvement in symptoms (RAI score)48%18%163% (6 to 605)4 (2 to 55)