Clinicians' Views on Therapeutic Outcomes of Systemic Interventions and on the Ability of the EQ-5D to Capture these Outcomes.
2017
Systemic interventions focus on improvements of interactions between clients and their environments, and are increasingly used to treat adolescents with problems of substance use and delinquency. Clients' progress may include broad and non-medical effects. When performing economic evaluations of these interventions, the common outcome of costs per quality adjusted life year (cost/QALY) may not capture all of these effects.The current study is an explorative study. It aims to investigate which outcomes clinicians consider relevant to the therapeutic success of systemic interventions and whether these, according to them, are sufficiently captured by the EQ-5D instrument.Semi-structured interviews were performed with seven clinicians at two mental health institutions in the Netherlands. Clinicians were asked to list the most relevant outcomes of systemic interventions. They were asked whether they considered the EQ-5D dimensions to sufficiently capture these outcomes or if they missed aspects or outcome domains.The clinicians mentioned several broad effects relevant for the evaluation of systemic interventions. These were aspects of family functioning, parental functioning, social competencies, school attendance, etc. They considered several EQ-5D dimensions relevant (i.e. in particular 'usual activities' and 'anxiety/depression'), yet they indicated that the instrument lacked systemic dimensions (i.e. family relations and relations with others) and addiction-related aspects.The interviewed clinicians considered several dimensions of the EQ-5D useful in evaluating effects of systemic interventions, yet they expressed the need to add additional dimensions particularly relevant to systemic aspects to the instrument when performing economic evaluations of systemic interventions. The explorative analysis was limited by the small number of interviewed clinicians. Furthermore, a relatively high proportion of clinicians were specialized in Multidimensional Family Therapy, a type of systemic intervention particularly used to treat adolescents with substance use disorders and related problems. Hence the importance of addiction-related improvements may have been over-emphasized in this group of respondents.Practical implications of the current study may be the need for enhancements of the current health economic methodology for evaluating systemic interventions as to capture additional aspects specifically relevant to these interventions. This may lead to different choices in the use of instruments for the evaluation of treatment progress and success in clinical practice.By improving the health economic toolkit to evaluate systemic interventions one may provide policy recommendations in line with the therapeutic goals of the interventions.Further research could be directed at investigating the suitability of other available instruments than the EQ-5D for economic evaluations of systemic interventions.
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