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Information delivered by public health nurses should not facilitate a specific choice but rather be balanced, explaining the benefits and harms, and accompanied by a qualified recommendation. Useful tools to improve practice may include checklists for shared decision-making and guidelines about trustworthy websites.

We found a diversity of cap and co-payment policies. Poor reporting of the intensity of interventions and differences in setting, populations and interventions made it difficult to make comparisons across studies. Cap and co-payment polices can reduce drug use and save plan drug expenditures. However, although insufficient data on health outcomes were available, substantial reductions in the use of life-sustaining drugs or drugs that are important in treating chronic conditions may have adverse effects on health, and as a result increase the use of healthcare services and overall expenditures. Direct payments are less likely to cause harm if only non-essential drugs are included or exemptions are built in to ensure that patients receive needed medical care.

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Objective: People are confronted with claims about the effects of treatments and health policies daily. Our objective was to develop a list of concepts that may be important for people to understand when assessing claims about treatment effects. Methods: An initial list of concepts was generated by the project team by identifying key concepts in literature and tools written for the general public, journalists, and health professionals, and consideration of concepts related to assessing the certainty of evidence for treatment effects. We invited key researchers, journalists, teachers and others with expertise in health literacy and teaching or communicating evidence-based health care to patients to act as the project's advisory group. Results: Twenty-nine members of the advisory group provided feedback on the list of concepts and judged the list to be sufficiently complete and organised appropriately. The list includes 32 concepts divided into six groups: (i) Recognising the need for systematic reviews of fair tests, (ii) Judging whether a comparison of treatments is fair comparison, (iii) Understanding the role of chance, (iv) Considering all the relevant fair comparisons, (v) Understanding the results of fair comparisons of treatments, (vi) Judging whether fair comparisons of treatments are relevant. Conclusion:The concept list provides a starting point for developing and evaluating resources to improve people's ability to assess treatment effects. The concepts are considered to be universally relevant, and include considerations that can help people assess claims about the effects of treatments, including claims that are found in mass media reports, in advertisements and in personal communication.