Cognitive behavioural therapy (brief versus standard duration) for schizophrenia

Yoga versus non-standard care for schizophrenia

BACKGROUND

Yoga is an ancient spiritual practice that originated in India and is currently accepted in the Western world as a form of relaxation and exercise. It has been of interest for people with schizophrenia as an alternative or adjunctive treatment.

OBJECTIVES

To systematically assess the effects of yoga versus non-standard care for people with schizophrenia.

SEARCH METHODS

The Information Specialist of the Cochrane Schizophrenia Group searched their specialised Trials Register (latest 30 March 2017), which is based on regular searches of MEDLINE, PubMed, Embase, CINAHL, BIOSIS, AMED, PsycINFO, and registries of clinical trials. We searched the references of all included studies. There are no language, date, document type, or publication status limitations for inclusion of records in the register.

SELECTION CRITERIA

All randomised controlled trials (RCTs) including people with schizophrenia and comparing yoga with non-standard care. We included trials that met our selection criteria and reported useable data.

DATA COLLECTION AND ANALYSIS

The review team independently selected studies, assessed quality, and extracted data. For binary outcomes, we calculated risk ratio (RR) and its 95% confidence interval (CI), on an intention-to-treat basis. For continuous data, we estimated the mean difference (MD) between groups and its 95% CI. We employed a fixed-effect models for analyses. We examined data for heterogeneity (I2 technique), assessed risk of bias for included studies, and created a 'Summary of findings' table for seven main outcomes of interest using GRADE (Grading of Recommendations Assessment, Development and Evaluation).

MAIN RESULTS

We were able to include six studies (586 participants). Non-standard care consisted solely of another type of exercise programme. All outcomes were short term (less than six months). There was a clear difference in the outcome leaving the study early (6 RCTs, n=586, RR 0.64 CI 0.49 to 0.83, medium quality evidence) in favour of the yoga group. There were no clear differences between groups for the remaining outcomes. These included mental state (improvement in Positive and Negative Syndrome Scale, 1 RCT, n=84, RR 0.81 CI 0.62 to 1.07, low quality evidence), social functioning (improvement in Social Occupational Functioning Scale, 1 RCT, n=84, RR 0.90 CI 0.78 to 1.04, low quality evidence), quality of life (mental health) (average change 36-Item Short Form Survey (SF-36) quality-of-life sub-scale, 1 RCT, n=69, MD -5.30 CI -17.78 to 7.18, low quality evidence), physical health, (average change WHOQOL-BREF physical-health sub-scale, 1 RCT, n=69, MD 9.22 CI -0.42 to 18.86, low quality evidence). Only one study reported adverse effects, finding no incidence of adverse events in either treatment group. There were a considerable number of missing outcomes, which included relapse, change in cognition, costs of care, effect on standard care, service intervention, disability, and activities of daily living.

AUTHORS' CONCLUSIONS

We found minimal differences between yoga and non-standard care, the latter consisting of another exercise comparator, which could be broadly considered aerobic exercise. Outcomes were largely based on single studies with limited sample sizes and short-term follow-up. Overall, many outcomes were not reported and evidence presented in this review is of low to moderate quality - too weak to indicate that yoga is superior or inferior to non-standard care control for management of people with schizophrenia.

Brief culturally adapted CBT (CaCBT) for depression: a randomized controlled trial from Pakistan

OBJECTIVES

To determine the efficacy of brief Culturally adapted CBT (CaCBT) for depression when added to Treatment As usual (TAU)-delivered by trained therapists using a manual compared with alone TAU.

METHODS

This was an assessor-blinded, randomised controlled clinical trial. Particpants with a diagnosis of depression, attending psychiatry departments of three teaching hospitals in Lahore, Pakistan, were included in the study. We screened a total of 280 patients and randomly allocated 137 of them to CaCBT plus Treatment As Usual (TAU) [Treatment group] or to TAU alone [Control group]. Assessments were completed at baseline, at 3 months and at 9 months after baseline. Reduction in depression score (Hospital Anxiety and Depression-Depression Subscale) at 3 months was primary outcome measure. The secondary outcome measures included anxiety scores (Hospital Anxiety and Depression-Anxiety Subscale), somatic symptoms (Bradford Somatic Inventory), disability (Brief Disability Questionnaire) and satisfaction with the treatment.

FINDINGS

A total of 69 participants were randomised to Treatment group and 68 to Control group. Participants in Treatment group showed statistically significant improvement in depression (p=0.000), anxiety (p=0.000), somatic symptoms (p=0.005) and disability (p=0.000). This effect was sustained at 9 months after baseline (Except for disability). Participants in Treatment group also reported higher satisfaction with treatment compared with those in Control group.

CONCLUSION

Brief CaCBT can be effective in improving depressive symptoms, when compared with treatment as usual. This is the first report of a trial of Culturally adapted CBT from South Asia and further studies are needed to generalise these findings.

Cognitive behavioral therapy (brief vs standard duration) for schizophrenia

There is some evidence from research that suggests that cognitive behavioral therapy for psychosis (CBTp) might offer some advantage if offered in combination with pharmacological treatments for people with schizophrenia. There are, however, limitations in its provision due to available resource and training issues. Brief forms of CBTp might be an alternative in settings with limited resources. Brief therapies have shown to be as effective as standard therapies for some nonpsychotic disorders. There is some evidence in favor of brief CBTp. We wanted to review the effects of brief CBTp for people with schizophrenia compared with standard CBTp. We searched the Cochrane Schizophrenia Group's Trials Register for randomized controlled trials (RCTs) involving adults with schizophrenia or related disorders, comparing brief cognitive behavioral therapy for people with psychosis vs standard CBTp. We found only 7 studies which used a brief version of CBTp, but no study compared brief CBTp with CBTp of standard duration. There is a need for RCTs which compare brief with standard CBTp. This review also highlighted the need for setting standard criteria for CBTp dose. For this review, we considered brief CBTp to be delivered within 4 months and using 6-10 sessions.