|Outcomes at 9 months||CBT||Befriending||RBI (95% CI)||NNT (CI)|
|*CPRS=Comprehensive Psychiatric Rating Scale. Other abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article.|
|≥50% improvement in CPRS total scores||63%||39%||63% (8 to 157)||5 (3 to 28)|
|≥50% improvement in CPRS schizophrenia change scores||70%||50%||39% (−1 to 102)||Not significant|
Cognitive behavioural therapy improved psychiatric symptoms in drug refractory schizophrenia
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