Has cognitive behavioural therapy for psychosis been oversold?

摘要

Notwithstanding the mixed signals from these and many other smaller or less rigorous studies, meta-analyses over the years have generally been supportive. The leading example here is unquestionably the meta-analysis, or rather series of meta-analyses, carried out for the 2009 National Institute for Health and Care Excellence's schizophrenia guideline.4 On the basis of these, NICE concluded that cognitive therapy was effective in reducing rates of readmission to hospital and duration of admission. It was also judged to be effective in reducing overall symptom severity, both at the end of treatment and after up to 12 months' follow-up. Effectiveness against positive symptoms was more limited, but evidence was marshalled for benefits on hallucinations.