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An assessment of the potential for personalisation in patient decision aids Øystein Eiring,...
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![Page 1: An assessment of the potential for personalisation in patient decision aids Øystein Eiring, Psychiatrist, Editor NEHL Mental Health, National Knowledge.](https://reader036.fdocuments.us/reader036/viewer/2022062806/56649d085503460f949da0c5/html5/thumbnails/1.jpg)
An assessment of the potential for
personalisation in patient decision aids
Øystein Eiring, Psychiatrist, Editor NEHL Mental Health, National Knowledge Centre and the University of Oslo.
Malaga November 2011
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What is a decision aid?
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Three patient roles
Doctor knows best
Independent customer
Shared decision-making
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Grey-zone decisions
Minhas R. Clinical Evidence. BMJ Publishing Group, 2011
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Condition DilemmaEarly prostate cancer
Surgery, radiotherapy or wait?
Early breast cancer
Breast-conservation or full removal?
Elevated cholesterol
Start taking statins?
Atrial fibrillation Begin warfarin to prevent stroke?
Depression Start with an antidepressive?Multiple sclerosis Medication or not?
Some examples
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Two very real problems
Does the patient know enough?
Does the physician know enough about the patients´ values?
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Tools that support patients in making informed choices in accordance with their values…
Definition of patient decision aids
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…when one particular treatment is not appropriate to all
DefinitionDefinition of patient decision aids
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The personalisation problem
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Personalisation often referred to
Patient decision aids (DAs) differ from usual health education materials – because of their detailed, specific, and
personalised focus on options and outcomes – for the purpose of preparing people for
decision making» [1]
DAs are aids to make personalised choices
10
O'Connor AM, Bennett CL, Stacey D, Barry M, Col NF, Eden KB, Entwistle VA, Fiset V, Holmes-Rovner M, Khangura S, Llewellyn-Thomas H, Rovner D. Decision aids for people facing health treatment or screening decision. Cochrane Database Syst Rev. 2009 (3):CD001431.
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A broad survey does not exist
Little is known about – the current use of – and potential for web personalisation
…inherent in the tools
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Explorative approach
The research field of web personalisation: – the employment of user features – in web systems – …that adapt their behavior to the user
Large inventory of techniques
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Objective
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To estimate the potential – Basic Requirement– Current use
for web personalization in web-based decision aids
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Simply: Is form and content tailored to the individual?
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Methods
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Development of a simple coding scheme for web personalisation– user features– adaptive systems behaviour
Based on a research anthology Adjusted during the coding process
Method: coding scheme
Brusilovsky P. Adaptive Navigation Support. In: Brusilovsky P, Kobsa A, Nejdl W. The Adaptive Web. Methods and Strategies of Web Personalization. Springer Verlag. Berlin, Heidelberg 2007
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Developers represented in the Ottawa Inventory
Pdfs excluded
The functionally richest DA from each developer selected
Method: identification of DAs
http://decisionaid.ohri.ca/AZinvent.php (Acessed July 20, 2011)
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Mapping of attributes of DAs to coding scheme System behaviour of DAs to fundamental
system behaviour of adaptable systems
Specific user-adaptive behaviour present in DAs
User feature subgroups amenable to personalisation representation
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Results
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10 producers of DAs met inclusion criteria
Producers responsible for 223 of the 259 DAs in the Ottawa Inventory
The functionally richest DA from each developer selected
10 decision aids selected
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1. Media content
2. User features
3. User model construction and representation
4. Adaptive system behaviour
4 classes in the coding scheme
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8 of 10 DAs are hypermedia (2 or more media types and hyperlinks present in 8 of the 10 Das)
Class 1: Content types
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1. Knowledge level2. Interests3. Preferences4. Goals/tasks5. Background6. Individual traits7. Context
Class 2: User features
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1. Navigation support2. Selection3. Organisation 4. Presentation of content5. Search6. Collaboration7. Recommendations
Class 4: Adaptive system behaviour
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Coping styles Emotional reactions Cognitive skills User beliefs Experiences of users Literacy level Somatic parameters
Most frequent user subgroups
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Risk factors Eligibility for treatment Incidences Prevalences Probabilities Outcomes Etiology Lab results Prediction of recovery
Results: Somatic parameters
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Representation of subgroups 1
Listing several subgroups and making specific statements true for each subgroup one by one
Making general statements that are irrelevant to at least one subgroup
Alluding to subgroups without specifying the attributes of the subgroups
Giving an average for all subgroups combined
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Representation of subgroups 2
Suggesting that a patient belongs to one, particular subgroup
Listing only some subgroups Not acknowledging the existence of
relevant subgroups Asking user to determine the relevant
subgroup her-/himself Helping the patient determine the relevant
subgroup e.g. through an interactive tool
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Representation of subgroups 3
Describing how health personnel should determine the relevant subgroup
Giving general information but acknowledging that subgroups do exist
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System behaviour and adaptation
Search field in 6 of 10– 5 of 10 in tool only
Simple adaptive navigation in 2 of 10 Selection, organisation and presentation
present 0 of 10 enabled user collaboration (forum in
1) 1 of 10 included recommendations
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Conclusions
Potentially adaptable system behaviour is present in quality-assessed, current decision aids
Adaptive behaviour as such is generally not present in current aids
User feature subgroups implicitly and explicitly represented– But generally not used for personalisation
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Conclusions continued
Quality-assessed DAs personalised to a very limited degree
Subgroup strategies employed reflect a non-adaptive, paper-on-web approach
Potential for developing truly personalised DAs
33
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Discussion!
Norwegian Electronic Health Library