future directions in health literacy researchfuture ...use narratives carefully for decision aids...
TRANSCRIPT
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Past Is Prologue:Future Directions in Health Literacy Research
Past Is Prologue:Future Directions in Health Literacy Research
David W. Baker, MD, MPHMichael A. Gertz Professor in Medicine
Chief, Division of General Internal MedicineFeinberg School of Medicine,
Northwestern UniversityChicago, Illinois
David W. Baker, MD, MPHMichael A. Gertz Professor in Medicine
Chief, Division of General Internal MedicineFeinberg School of Medicine,
Northwestern UniversityChicago, Illinois
Health Literacy Annual Research ConferenceHealth Literacy Annual Research ConferenceOctober 19, 2008October 19, 2008Washington, D.C.Washington, D.C.
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Beyond Plain Language
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Simplified Polio Vaccine Brochure Improves Comprehension
Simplified Polio Vaccine Brochure Improves Comprehension
TC Davis. Pediatrics ‘96TC Davis. Pediatrics ‘96
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Beyond Plain Language
What can we do to increase the effectiveness of educational materials?When are print materials not enough?What are the limits of multimedia?What is the role of patient narratives?Can we teach patients less and activate them more?
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Beyond Plain Language
What can we do to increase the effectiveness of educational materials?When are print materials not enough?What are the limits of multimedia?What is the role of patient narratives?Can we teach patients less and activate them more?
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Reading Fluency
- Prose
- Quantitative
- Document
Reading Fluency
- Prose
- Quantitative
- Document
Prior Knowledge
- Vocabulary
- Conceptual knowledgeof health and healthcare
Prior Knowledge
- Vocabulary
- Conceptual knowledgeof health and healthcare
New Knowledge, Positive Attitudes,
Greater Self-Efficacy, Behavior Change
New Knowledge, Positive Attitudes,
Greater Self-Efficacy, Behavior Change
Improved Health
Outcomes
Improved Health
Outcomes
Complexity and Difficulty of
Printed Messages
Complexity and Difficulty of
Printed Messages
Complexity and Difficulty of Spoken
Messages
Complexity and Difficulty of Spoken
Messages
INDIVIDUAL CAPACITY
INDIVIDUAL CAPACITY
HEALTH-RELATED PRINT LITERACY
Ability to understand written health information
Other Factors:Culture and NormsBarriers to change
Other Factors:Culture and NormsBarriers to change
Conceptual Model of Health LiteracyConceptual Model of Health Literacy
Baker DW, J Gen Intern Med, 2006Baker DW, J Gen Intern Med, 2006
HEALTH-RELATED ORAL LITERACY
Ability to communicate orally about health
HEALTH-RELATED ORAL LITERACY
Ability to communicate orally about health
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Diabetes Knowledge Gained According to Literacy Level
2.64.3
6.57.5*
10*12.6*
0123456789
1011121314151617
Inadequate Marginal Adequate
Pre-test score
Post-test score
=4.9†
=5.7†
=6.1†
Kandula N, Baker DW, et al. Pt Ed Couns 09
Very low knowledge at baseline
Similar improvement
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But Large Gap Remains
2.64.3
6.57.5
1012.6
0123456789
1011121314151617
Inadequate Marginal Adequate
Pre-test score Post-test score
And gap largest for those with inadequate literacy
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Structured LearningStructured LearningLow literate often lack prerequisite knowledge required for higher level learningTo overcome this, we need to:– Define learning objectives– Analyze learning tasks and define
challenges, including background knowledge needed to truly comprehend
– Design instructional sequence• Verbal information, rules, concepts• Problem solving
Low literate often lack prerequisite knowledge required for higher level learningTo overcome this, we need to:– Define learning objectives– Analyze learning tasks and define
challenges, including background knowledge needed to truly comprehend
– Design instructional sequence• Verbal information, rules, concepts• Problem solving
Principles of Instructional Design. Gagné RMPrinciples of Instructional Design. Gagné RM
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Informed DecisionSurgical Treatments have equal survival
Breast cancer starts as a lump in the breast
Parts of the lump can break off and spread to the body
Only this spread through the body kills women with breast cancer
Surgery does not treat cancer that has spread through the body
What Do Patients Need to Know Before They Are Ready for Key Messages?Your chances of long-term survival with early
breast cancer are the same with lumpectomy and XRT and mastectomy
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Beyond Plain Language
What can we do to increase the What can we do to increase the effectiveness of educational materials?effectiveness of educational materials?When are When are print materials not enough?not enough?What are the limits of multimedia?What are the limits of multimedia?What is the role of patient narratives?What is the role of patient narratives?Can we teach patients less and activate Can we teach patients less and activate them more?them more?
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Quantitative Skills (Numeracy):Is your blood sugar normal today?
37% Unable to Answer Correctly37% Unable to Answer Correctly
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Multimedia for Communicating Complex Ideas
Everyone has sugar in their bloodEveryone has sugar in their bloodIt comes from the food you eat: even It comes from the food you eat: even foods that donfoods that don’’t taste sweet have sugart taste sweet have sugarYour body needs sugar to functionYour body needs sugar to functionBut too much sugar is bad: thatBut too much sugar is bad: that’’s diabetess diabetesYour goal is to have just the right amount Your goal is to have just the right amount of sugar: not too much, not too littleof sugar: not too much, not too little
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Volandes, A. E. et al. Arch Intern Med 2007;167:828-833.
Multimedia for Communicating Ideas that Words Alone Cannot Adequately Convey:Deciding Preferences for End of Life Care
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Copyright restrictions may apply.
Patient Preferences for Level of Medical Care Before and After Watching Video
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Copyright restrictions may apply.
Patient Preferences for Level of Medical Care Before and After Watching Video
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Differences in Preferences for Whites, Blacks,
and Latinos Diminished Greatly after
Watching Video
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Beyond Plain Language
What can we do to increase the effectiveness of educational materials?When are print materials not enough?What are the limits of multimedia?What is the role of patient narratives?Can we teach patients less and activate them more?
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Diabetes Foot Care Module
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The Limits of MultimediaGeneral concepts or analogies General concepts or analogies communicated well communicated well May powerfully change attitudesMay powerfully change attitudesInformation goes by very quicklyInformation goes by very quickly
–– Particularly problematic if low Particularly problematic if low knowledge baseknowledge base
–– Elderly have slower information Elderly have slower information processing speedprocessing speed
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Overcoming the Fast Pace Overcoming the Fast Pace of Multimedia Programsof Multimedia Programs““Virtual page turnsVirtual page turns””–– Give short segment and stopGive short segment and stop–– Viewer can repeat or go forwardViewer can repeat or go forward–– Medline Plus uses this modelMedline Plus uses this model
Combine with print materialsCombine with print materials–– ““ReverseReverse--engineeredengineered”” print materials print materials
that follow as that follow as ““companion guidecompanion guide””No studies to my knowledge about thisNo studies to my knowledge about this
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Beyond Plain Language
What can we do to increase the effectiveness of educational materials?When are print materials not enough?What are the limits of multimedia?What is the role of patient narratives?Can we teach patients less and activate them more?
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Alternative to the Didactic
Model of Behavior Change:A Social
Cognitive Approach
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Pros and Cons of Patient Pros and Cons of Patient Narratives Are UnclearNarratives Are Unclear
AdvantagesAdvantages–– Role modeling, social learningRole modeling, social learning–– May powerfully influence attitudesMay powerfully influence attitudes
DisadvantagesDisadvantages–– May not be as successful for educationMay not be as successful for education–– Information goes by quicklyInformation goes by quickly–– Distractors, high Distractors, high ““cognitive loadcognitive load””
Optimal placement of narratives unclearOptimal placement of narratives unclear
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Use Narratives Carefully Use Narratives Carefully for Decision Aidsfor Decision Aids
Systematic review of the effect of narrative Systematic review of the effect of narrative information on decisioninformation on decision--makingmaking17 studies: 41% 117 studies: 41% 1stst person, 59% 3person, 59% 3rdrd personpersonIn 5 of 17 studies, narratives affected In 5 of 17 studies, narratives affected decision making, especially if 1decision making, especially if 1stst personpersonAuthors called for caution when using Authors called for caution when using narratives as part of interventions to aid narratives as part of interventions to aid medical decisionmedical decision--makingmaking
Winterbottom A, et al. Soc Sci Med 2008Winterbottom A, et al. Soc Sci Med 2008
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Beyond Plain Language
What can we do to increase the effectiveness of educational materials?When are words not enough?What are the limits of multimedia?What is the role of patient narratives?Can we teach patients less and activate them more?
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Just Do It?
Traditional model– Knowledge, Attitudes, Behavior
Action model– Less information, more goal setting– Identify options for behavior change– Patient testimonials
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DeWalt DA, et al. Patient Educ Couns 2009
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DeWalt DA, et al. Patient Educ Couns 2009
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Beyond Teach Back
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Learning Mastery TheoryLearning Mastery TheoryBenjamin Bloom developed in 1950sPostulates that people differ in the speed at which they learn information (i.e., the number of repetitions required)Level of mastery is determined by the time devoted to teaching divided by the time required for learningLow literate will usually require more repetition of the material to master it
Benjamin Bloom developed in 1950sPostulates that people differ in the speed at which they learn information (i.e., the number of repetitions required)Level of mastery is determined by the time devoted to teaching divided by the time required for learningLow literate will usually require more repetition of the material to master it
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Most Patients Required Multiple
Repetitions to Master Informed Consent
Sudore RL, et al JGIM ‘06
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Rate of Mastery Somewhat Higher for Patients with Higher Literacy, but Almost All Need Repetition
Rate of Mastery Somewhat Higher for Patients with Higher Literacy, but Almost All Need Repetition
0
20
40
60
80
100
Adequate Marginal Inadequate
%
1 pass 2 passes 3 passes
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Table 4. Change in Knowledge Score for Patients in the MDEP + TTG Group
2.7
5.7
9.1
12.3
15.416.416.3 16.8
5.0
8.3
0
4
8
12
16
Inadequate/Marginal Adequate
Pre-testPost-testPass 2Pass 3Follow up
∆=-11.3†∆=-8.5 †
†The absolute change from TTG pass 3 to follow-up, where the absolute change of the inadequate/marginal group (-11.3) is compared to the absolute change of the adequate group (-8.5); p-value<0.01.
Teach Back Successful for Diabetes Education
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Table 4. Change in Knowledge Score for Patients in the MDEP + TTG Group
2.7
5.7
9.1
12.3
15.416.416.3 16.8
5.0
8.3
0
4
8
12
16
Inadequate/Marginal Adequate
Pre-testPost-testPass 2Pass 3Follow up
∆=-11.3†∆=-8.5 †
†The absolute change from TTG pass 3 to follow-up, where the absolute change of the inadequate/marginal group (-11.3) is compared to the absolute change of the adequate group (-8.5); p-value<0.01.
But What About Long-Term Retention?
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Beyond Teach Back
How do we improve retention?Active learning and problem solving?Repetition/reinforcement outside of the healthcare setting?
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Beyond the Office
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Pre-visitPre-visit VisitVisit Post-visitPost-visit
The Status Quo: Most Info Given at Time of Visit
The Status Quo: Most Info Given at Time of Visit
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A New ParadigmA New ParadigmHealth needs assessed before a visitBased on this, patients given materials to prepare them for the discussion.– Print, multimedia, or both– Standardized information– Designed with patients to ensure clarity
of words and conceptsOffice tools help providers communicatePatients sent home with summariesAutomatic reminders sent to patients
Health needs assessed before a visitBased on this, patients given materials to prepare them for the discussion.– Print, multimedia, or both– Standardized information– Designed with patients to ensure clarity
of words and conceptsOffice tools help providers communicatePatients sent home with summariesAutomatic reminders sent to patients
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Before the AppointmentBefore the AppointmentDear Mr. Lucky,Thank you for taking the time to complete your health check. This showed that you have never been screened for colon cancer. Screening for colon cancer can save your life.
Please come to your visit 15 minutes early. The nurse will show you a short video and answer your questions. Dr. Quick will also discuss this with you when you see her.
Dear Mr. Lucky,Thank you for taking the time to complete your health check. This showed that you have never been screened for colon cancer. Screening for colon cancer can save your life.
Please come to your visit 15 minutes early. The nurse will show you a short video and answer your questions. Dr. Quick will also discuss this with you when you see her.
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Makoul, Cameron, Wolf, Baker, et al
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After the AppointmentAutomated Reminders to Reinforce
Understanding and Adherence
After the AppointmentAutomated Reminders to Reinforce
Understanding and AdherenceDear Mr. Lucky,I wanted to tell you again how important it is to be screened for colon cancer. Don’t wait! Be sure to schedule your colonoscopy as soon as possible. Remember, this test could save your life. Sincerely,Dr. Quick
Dear Mr. Lucky,I wanted to tell you again how important it is to be screened for colon cancer. Don’t wait! Be sure to schedule your colonoscopy as soon as possible. Remember, this test could save your life. Sincerely,Dr. Quick
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An Alternative ModelAn Alternative Model
Pre-visitPre-visit VisitVisit Post-visitPost-visit
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Beyond Readability Formulas
From ReadabilityTo Usability
or
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???
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Mommy, you should be on
Ibutilide for your atrial fibrillation!
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ChallengesHow do we demonstrate that patient portals and web sites are problematic for most Americans?How can we assess usability of these without direct usability testing, which is time consuming, expensive, and not feasible for all web sitesCan we develop general guidelines for how to design these to make them more accessible?Can we use online instructional aids or other tools to help increase accessibility and usability?
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Bickmore TW, et al. Patient Educ Couns 2009
Use of a Computer Agent to Explain Informed Consent
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Computerized “Agent” as Good as Human and Better than Self Study
for Comprehension and Satisfaction
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