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Headline
The study found that there is uncertainty over whether or not educational interventions that address issues that could improve health-related quality of life in people with chronic skin conditions are effective. Tentative conclusions about the best approach to deliver these kinds of interventions are that face-to-face group sessions may be beneficial; however, text messages may also be effective. Delivery over a period of time and by a multidisciplinary team may also be associated with positive outcomes. There is uncertainty over whether or not educational interventions are cost-effective. Priorities for research are high-quality, adequately powered randomised controlled trials that evaluate theory-based interventions and include an adequate long-term follow-up in all chronic inflammatory skin conditions.
Abstract
Background:
Inflammatory skin diseases include a broad range of disorders. For some people, these conditions lead to psychological comorbidities and reduced quality of life (QoL). Patient education is recommended in the management of these conditions and may improve QoL.
Objectives:
To assess the clinical effectiveness and cost-effectiveness of educational interventions to improve health-related quality of life (HRQoL) in people with chronic inflammatory skin diseases.
Data sources:
Twelve electronic bibliographic databases, including The Cochrane Library, MEDLINE and EMBASE, were searched to July 2014. Bibliographies of retrieved papers were searched and an Advisory Group contacted.
Review methods:
Systematic reviews were conducted following standard methodologies. Clinical effectiveness studies were included if they were undertaken in people with a chronic inflammatory skin condition. Educational interventions that aimed to, or could, improve HRQoL were eligible. Studies were required to measure HRQoL, and other outcomes such as disease severity were also included. Randomised controlled trials (RCTs) or controlled clinical trials were eligible. For the review of cost-effectiveness, studies were eligible if they were full economic evaluations, cost–consequence or cost analyses.
Results:
Seven RCTs were included in the review of clinical effectiveness. Two RCTs focused on children with eczema and their carers. Five RCTs were in adults. Of these, two were of people with psoriasis, one was of people with acne and two were of people with a range of conditions. There were few similarities in the interventions (e.g. the delivery mode, the topics covered, the duration of the education), which precluded any quantitative synthesis. Follow-up ranged from 4 weeks to 12 months, samples sizes were generally small and, overall, the study quality was poor. There appeared to be positive effects on HRQoL in participants with psoriasis in one trial, but no difference between groups in another trial in which participants had less severe psoriasis. Carers of children in one RCT of eczema showed improvement in HRQoL; however, in a RCT evaluating a website intervention there were no demonstrable effects on HRQoL. Neither the RCT in those adults with acne nor the RCT in those adults with mixed skin conditions demonstrated an effect on HRQoL. One RCT reported subgroups with atopic dermatitis or psoriasis and education was effective for psoriasis only. Other outcomes also showed mixed results. It is unclear how clinically meaningful any of the observed improvements are. Three studies of cost-effectiveness were included. The interventions, comparators and populations varied across the studies and, overall, the studies provided limited information on cost-effectiveness. The studies did provide detailed information on resources and costs that could be useful to inform a future cost-effectiveness evaluation in this area.
Limitations:
The application of the inclusion criterion around whether the interventions were aimed at improving HRQoL or the inference that they could improve HRQoL was difficult as information was rarely reported.
Conclusions:
There is uncertainty regarding whether educational interventions addressing issues that could improve HRQoL in people with chronic skin conditions are effective. Tentative conclusions about the best approach to delivering these kinds of interventions are that face-to-face, group, sessions may be beneficial; however, text messages may also be effective. Delivery over a period of time and by a multidisciplinary team may also be associated with positive outcomes. There is uncertainty over whether or not educational interventions are cost-effective.
Study registration:
This study is registered as PROSPERO CRD42014007426.
Funding:
The National Institute for Health Research Health Technology Assessment programme.
Contents
- Plain English summary
- Scientific summary
- Chapter 1. Background
- Chapter 2. Methods
- Chapter 3. Results of the systematic review of clinical effectiveness
- Quantity and quality of research available
- Characteristics of the included trials
- Aims, content and structure of the educational interventions in the included trials
- Outcomes assessed in the included trials
- Participants’ baseline characteristics
- Quality of reporting and methodology of the included trials
- Completeness of reporting of the interventions
- Statistical issues
- Generalisability to UK clinical practice
- Assessment of effectiveness
- Trials of educational interventions for eczema/atopic dermatitis
- Summary of clinical effectiveness
- Ongoing studies
- Chapter 4. Economic analysis
- Chapter 5. Discussion
- Chapter 6. Conclusions
- Acknowledgements
- References
- Appendix 1 Common health-related quality-of-life and disease severity measures
- Appendix 2 Search strategy
- Appendix 3 Quality assessment criteria
- Appendix 4 Data extraction tables: clinical effectiveness
- Appendix 5 List of excluded studies with rationale
- Appendix 6 Full details of the structure and content of the educational interventions
- Appendix 7 Excluded cost-effectiveness studies
- Appendix 8 Data extractions from systematic review of cost-effectiveness
- List of abbreviations
Article history
The research reported in this issue of the journal was funded by the HTA programme as project number 13/11/01. The contractual start date was in January 2014. The draft report began editorial review in October 2014 and was accepted for publication in April 2015. The authors have been wholly responsible for all data collection, analysis and interpretation, and for writing up their work. The HTA editors and publisher have tried to ensure the accuracy of the authors’ report and would like to thank the reviewers for their constructive comments on the draft document. However, they do not accept liability for damages or losses arising from material published in this report.
Declared competing interests of authors
none
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