Self-help and guided self-help for eating disorders

CBT Guided Self-Help Compares Favourably to Gold Standard Therapist-Administered CBT and Shows Unique Benefits Over Traditional Treatment

CBT guided self-help (CBTgsh) can produce treatment outcomes comparable to therapist-administered CBT (CBTta) for the treatment of anxiety and depression. The efficacy of CBTgsh compared to gold standard CBTta, however, remains to be examined. The current article addresses this issue, as well as how CBTgsh may have unique benefits over CBTta. It further highlights ways in which CBTgsh may be used for disorders of increasing severity, using eating disorders and personality pathology for illustrative purposes. A literature review of PsycINFO, PsyARTICLES, and PubMED was conducted to identify relevant studies published since 1990. Studies directly comparing CBTgsh to gold standard CBTta for anxiety and depression, as well as bulimia nervosa, revealed no significant differences between the two interventions. Furthermore, CBTgsh may have unique benefits by encouraging continued improvement over time. Innovative eating disorder studies also show that CBTgsh can be used for more severe disorders as a supplementary treatment, and produces treatment outcomes superior to CBTta or treatment as usual alone. Based on these findings, CBTgsh applications to personality pathology are suggested. Traditional stepped care models, as they pertain to CBTgsh, may gain to be broadened both in their focus and methods of delivery.

Economics methods in Cochrane systematic reviews of health promotion and public health related interventions

BACKGROUND

Provision of evidence on costs alongside evidence on the effects of interventions can enhance the relevance of systematic reviews to decision-making. However, patterns of use of economics methods alongside systematic review remain unclear. Reviews of evidence on the effects of interventions are published by both the Cochrane and Campbell Collaborations. Although it is not a requirement that Cochrane or Campbell Reviews should consider economic aspects of interventions, many do. This study aims to explore and describe approaches to incorporating economics methods in a selection of Cochrane systematic reviews in the area of health promotion and public health, to help inform development of methodological guidance on economics for reviewers.

METHODS

The Cochrane Database of Systematic Reviews was searched using a search strategy for potential economic evaluation studies. We included current Cochrane reviews and review protocols retrieved using the search that are also identified as relevant to health promotion or public health topics. A reviewer extracted data which describe the economics components of included reviews. Extracted data were summarised in tables and analysed qualitatively.

RESULTS

Twenty-one completed Cochrane reviews and seven review protocols met inclusion criteria. None incorporate formal economic evaluation methods. Ten completed reviews explicitly aim to incorporate economics studies and data. There is a lack of transparent reporting of methods underpinning the incorporation of economics studies and data. Some reviews are likely to exclude useful economics studies and data due to a failure to incorporate search strategies tailored to the retrieval of such data or use of key specialist databases, and application of inclusion criteria designed for effectiveness studies.

CONCLUSION

There is a need for consistency and transparency in the reporting and conduct of the economics components of Cochrane reviews, as well as regular dialogue between Cochrane reviewers and economists to develop increased capacity for economic analyses alongside such reviews. Use of applicable economics methods in Cochrane reviews can help provide the international context within which economics data can be interpreted and assessed as a preliminary to full economic evaluation.