Shared Decision Making: A Model for Clinical Practice
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The principles of shared decision making are well documented but there is a lack of guidance about how to accomplish the approach in routine clinical practice. Our aim here is to translate existing conceptual descriptions into a three-step model that is practical, easy to remember, and can act as a guide to skill development. Achieving shared decision making depends on building a good relationship in the clinical encounter so that information is shared and patients are supported to deliberate and express their preferences and views during the decision making process. To accomplish these tasks, we propose a model of how to do shared decision making that is based on choice, option and decision talk. The model has three steps: a) introducing choice, b) describing options, often by integrating the use of patient decision support, and c) helping patients explore preferences and make decisions. This model rests on supporting a process of deliberation, and on understanding that decisions should be influenced by exploring and respecting “what matters most” to patients as individuals, and that this exploration in turn depends on them developing informed preferences.
Key Wordsshared decision making patient centered care
Sharing decisions, as opposed to clinicians making decisions on behalf of patients, is gaining increasing prominence in health care policy.1, 2, 3, 4 Shared decision making (SDM) has been defined as: ‘an approach where clinicians and patients share the best available evidence when faced with the task of making decisions, and where patients are supported to consider options, to achieve informed preferences”.2
The principles of SDM are well documented and the common elements have been summarized.5 The earliest mention was in 1982,6 but the idea draws on and deepens the principles of patient centered care.7,8 Others9,10 provided more detail and this led to a greater focus on the skills required.11,12 Yet, despite attention to principles and competences, there remains a lack of clear guidance about how to accomplish SDM in routine practice. Our aim is to translate conceptual descriptions into a three-step model that is practical for clinicians. The purpose of this article is to advance a novel, yet pragmatic, proposal about how to do SDM in routine settings, in short to integrate good communication skills with the use of patient decision support tools.
GUIDING ETHICAL PRINCIPLES
The skills of SDM are unlikely to be developed, let alone exhibited, unless the clinician agrees with the guiding ethical principles. At its core, SDM rests on accepting that individual self-determination is a desirable goal and that clinicians need to support patients to achieve this goal, wherever feasible. Self-determination in the context of SDM does not mean that individuals are abandoned. SDM recognizes the need to support autonomy by building good relationships, respecting both individual competence and interdependence on others. These are the key tenets of both self-determination13 and relational autonomy.14 Self-determination theory is concerned with our intrinsic tendencies to protect and preserve our well-being.13 Relational autonomy is the term used to describe the view that we are not entirely free, self-governing agents but that our decisions will always relate to interpersonal relationships and mutual dependencies.15 As King and Moulton have noted, these principles extend the concept of informed consent beyond that of simple information transfer towards honoring informed preferences.16 We acknowledge that good clinical practice balances these principles with those of beneficence and justice.17
However, some healthcare professionals express doubts, saying that patients don’t want to be involved in decisions, lack the capacity or ability, might make ‘bad’ decisions, or worry that SDM is just not practical, given constraints such as time pressure. Others claim they are ‘already doing it’, though data from patient experience surveys indicates that this is not generally the case.18,19 It is therefore clear that the first step for those advocating the uptake of SDM is to ensure that clinicians and others support the underlying rationale.
Before doing so however, we need to note the challenges that clinicians will be navigating. Low health literacy or low numeracy will be barriers to SDM and some patients come from cultural backgrounds that lack a tradition of individuals making autonomous decisions. We cannot therefore emphasize too strongly that SDM has to be built on the core skills of good clinical communication skills, as recognized in many seminal texts,20, 21, 22, 23 including building rapport and structuring the consultations.24
WHY SHARE DECISIONS: BEYOND THE ETHICAL IMPERATIVE
DOING SHARED DECISION MAKING
We propose that achieving SDM depends on tasks that help confer agency, where agency refers to the capacity of individuals to act independently and to make their own free choices.27,28 SDM aims to confer agency by 1) providing information and 2) supporting the decision making process.
We help patients participate by providing high quality information. We also need to elicit what patients already know, and whether it is correct. People place different importance on the outcomes associated with different options and have different preferences about the processes and paths that lead to these outcomes. If patients are not informed, they will be unable to assess ‘what it is important to them’, and so establish informed preferences. The first task of SDM is to ensure that individuals are not making decisions when insufficiently informed about key issues, not ‘making decisions in the face of avoidable ignorance’ (Al Mulley, personal communication). Many tools have been designed to help achieve this goal.29 Detail about these tools and their effects can be found elsewhere:11 in this article we will describe how to deploy them as part of doing SDM.
A MODEL FOR CLINICAL PRACTICE
To accomplish SDM, we propose a three-step model for clinical practice (see Fig. 1). We want to emphasize that this is a simplified model that illustrates the process of moving from initial to informed preferences. We acknowledge that this process also has psychological, social and emotional factors that will influence this deliberation space and that will need to be managed by an effective clinician-patient dialogue, seeking what Epstein has termed a ‘shared mind’.33 However, accepting these requirements, we aim for parsimony.
Patients will want time to study new information and to consider their personal preferences, particularly for futures that are unknown to them, to think about outcome states that they have never experienced.34,35 Deliberation may, in part, be done outside the clinical encounter, although often patients wish to consolidate their views with a trusted clinician. Individuals often want to discuss options with others and it would be best if those involved could potentially use the same information resources (see below). Rapley has referred to this need to talk to others, at different times and places, as a ‘distributed’ deliberation process.36 Recognizing this need, and allowing time for it, is a cornerstone for effective SDM .33,37
We use the term "deliberation" (see Fig. 1) to describe a process of considering information about the pros and cons of their options, to assess their implications, and to consider a range of possible futures, practical as well as emotional. This ‘deliberation’ space, colored grey in the figure, encompasses the need to work collaboratively with professionals as well as with the wider networks that patients will use.36 Deliberation begins as soon as awareness about options develops. The process is iterative and recursive, and the intensity increases after options have been described and understood.
We have proposed a model of how to do SDM in clinical practice (Fig. 1), based on three key steps, namely choice talk (Box 1), option talk (Box 2) and decision talk (Box 3), whilst also being aware that many other people may be contributing. There are implications for training: in our experience the best way to learn these skills is to use simulations, either with colleagues or with trained actors11,40,41 and use brief patient decision support tools.38,42 There are measurement scales to assess skillfulness,43,44 although we lack a measure to assess proficiency in risk communication. The use of brief patient decision support tools can catalyze SDM.38,42
This model builds on the previous work in this field by integrating a number of contributions. It acknowledges the foundations in ethics9,10 as well as the work that describes the stages and skills required.5 However, it was our experience in implementation studies that gave rise to this three-step model that aims to help clinicians integrate SDM and patient decision support into their work.42
Many clinicians will push back at the suggestion that yet more has to be accomplished in clinical encounters. We acknowledge this concern and argue that new systems will be required to appropriately reward truly patient centered practice. The introduction of brief decision support interventions can act as a catalyst for a new discourse and help make SDM a practical reality in busy clinics, albeit one that may lead to some patients needing more than one encounter where they can discuss important decisions. We realize that this model is a simplification of a complex, dynamic process, yet its simplicity may help others accomplish and teach shared decision making. That was our goal.
Ronald Epstein provided detailed helpful feedback and we thank him for his input. Dawn Carey of the Dartmouth Center for Healthcare Delivery Science, Dartmouth College provided additional support.
We acknowledge the Health Foundation, who commissioned work on shared decision making in the UK (Making Good Decisions in Collaboration: MAGIC), which provided the stimulus for this article.
Conflict of Interest
Glyn Elwyn and Adrian Edwards have developed a range of decision support interventions for patients, including AmnioDex, Prosdex and Bresdex (hosted by NHS Direct in the UK). Michael Barry, Adrian Edwards, Glyn Elwyn, Richard Thomson, Natalie Joseph-Williams are members of the IPDAS collaboration. Glyn Elwyn is a director of Prepare to Share, a consultancy group for shared decision making. Michael Barry receives salary support as president of the Informed Med Decis Making Foundation, a not-for-profit (501 (c) 3) organization. (http://www.informedmedicaldecisions.org). The Foundation develops content for decision support programs. The Foundation has an arrangement with a for-profit company, Health Dialog, to co-produce these programs. The programs are used as part of the decision support and disease management services Health Dialog provides to consumers through health care organizations and employers.
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