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Clinical Trial
. 1998 Aug 1;317(7154):303-7.
doi: 10.1136/bmj.317.7154.303.

Randomised controlled trial of intensive cognitive behaviour therapy for patients with chronic schizophrenia

N Tarrier  1 , L Yusupoff, C Kinney, E McCarthy, A Gledhill, G Haddock, J Morris
Affiliations
Clinical Trial

Randomised controlled trial of intensive cognitive behaviour therapy for patients with chronic schizophrenia

N Tarrier et al. BMJ. .

Abstract

Objectives: To investigate whether intensive cognitive behaviour therapy results in significant improvement in positive psychotic symptoms in patients with chronic schizophrenia.

Design: Patients with chronic schizophrenia were randomly allocated, stratified according to severity of symptoms and sex, to intensive cognitive behaviour therapy and routine care, supportive counselling and routine care, and routine care alone.

Setting: Adjunct treatments were carried out in outpatient clinics or in the patient's home.

Subjects: 87 patients with persistent positive symptoms who complied with medication; 72 completed treatment.

Outcome measures: Assessments of positive psychotic symptoms before treatment and 3 months after treatment. Number of patients who showed a 50% or more improvement in symptoms. Exacerbation of symptoms and rates of readmission to hospital.

Results: Significant improvements were found in the severity (F=5.42, df =2,86; P=0.006) and number (F=4.99, df=2,86; P=0.009) of positive symptoms in those treated with cognitive behaviour therapy. The supportive counselling group showed a non-significant improvement. Significantly more patients treated with cognitive behaviour therapy showed an improvement of 50% or more in their symptoms (chi2=5.18, df=1; P=0.02). Logistic regression indicated that receipt of cognitive behaviour therapy results in almost eight times greater odds (odds ratio 7.88) of showing this improvement. The group receiving routine care alone also experienced more exacerbations and days spent in hospital.

Conclusions: Cognitive behaviour therapy is a potentially useful adjunct treatment in the management of patients with chronic schizophrenia.

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Recruitment and allocation of subjects
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References

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