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Addressing Health Literacy: Critical to Good Health Outcomes. Darren A. DeWalt, MD, MPH Assistant Professor of Medicine University of North Carolina School of Medicine December 11, 2008. Patient Centered Medical Home.

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Addressing Health Literacy:

Critical to Good Health Outcomes

Darren A. DeWalt, MD, MPH

Assistant Professor of Medicine

University of North Carolina School of Medicine

December 11, 2008


Patient centered medical home
Patient Centered Medical Home

  • Patient centered requires understanding the skills and desires of the patient

  • Medical home implies seamless and supportive care that is coordinated

  • Helping the individual patient thrive

  • Health literacy is at the center of PCMH


Summary
Summary

  • What is health literacy?

  • Literacy in America

  • Literacy and health outcomes

  • Strategies to address low health literacy


Health literacy
Health Literacy

“The degree to which individuals have the capacity to obtain, process, and understand basic health information and services needed to make appropriate health decisions.”

Healthy People 2010



National assessment of adult literacy naal
National Assessment of Adult Literacy (NAAL)

n = 19,714

● Most up to date portrait of literacy in U.S.

● Scored on 4 levels

● Lowest 2 levels cannot:

◦ Use a bus schedule or bar graph

◦ Explain the difference in two types of employee benefits

◦ Write a simple letter explaining an error on a bill

National Center for Education Statistics, U.S. Department of Education


2003 national assessment of adult literacy
2003 National Assessment of Adult Literacy

13%

14%

Below

Basic

Proficient

29%

Basic

44%

Intermediate

Basic or Below Basic

52% of H.S. Grads

61% of Adults ≥ 65

93 Million Adults have Basic or Below Basic Literacy


Inadequate literacy increases with age
Inadequate Literacy Increases with Age

Slide by Terry Davis, PhD


Video
Video

  • It’s hard to be a patient



Health Outcomes Associated with Literacy

  • Health Outcomes/Health Services

  • General health status

  • Hospitalization

  • Prostate cancer stage

  • Depression

  • Asthma

  • Diabetes control

  • HIV control

  • Mammography

  • Pap smear

  • Pneumococcal immunization

  • Influenza immunization

  • STD screening

  • Cost

  • Mortality

  • Behaviors Only

  • Substance abuse

  • Breastfeeding

  • Behavioral problems

  • Adherence to medication

  • Smoking

  • Knowledge Only

  • Birth control knowledge

  • Cervical cancer screening

  • Emergency department instructions

  • Asthma knowledge

  • Hypertension knowledge

  • Prescription labels

DeWalt, et al. JGIM 2004;19:1228-1239


Asthma patients with low literacy have poorer metered dose inhaler mdi skills

4

3

2

1.7

1.5

1

1.2

0.7

0

< 3rd

4th-6th

7th-8th

>9th

Asthma Patients with Low Literacy have Poorer Metered Dose Inhaler (MDI) Skills

Mean MDI

Score

0 - 4

Williams et al. Chest 1998, 114(4):1008-1015.


Adult hospitalization
Adult Hospitalization

  • People with low literacy have 30-70% increased risk of hospitalization

  • RR = 1.29 (1.07-1.55) Medicare Managed Care

  • RR = 1.69 (1.13-2.53) Urban Public Hospital

*Adjusted for age, gender, socioeconomic status, health status, and regular source of care.

Baker et al. AJPH. 2002. 92:1278.

Baker et al. JGIM. 1998. 13:791.


Can Patients Comprehend Rx Drug

Warning Labels?

Davis et al. JGIM 2006; 21: 847-851


Simple Familiar Wording Understood by Most Patients

84%

(1st grade.)

Slide by Terry Davis


More Complex Message Limited Comprehension Patients

59%

(10th-12th grade.)

Slide by Terry Davis


Unfamiliar Multi-step Instructions Rarely Understood Patients

8%

(12th-13th grade)

Slide by Terry Davis


Comprehension Increased with Patient Literacy Level

* p<.0001, †p<.05

<67-8>9

79% 86% 88% †

35% 66% 78% *

8% 64% 82% *

8% 18% 23% *

0% 6% 15% *

In multivariate analysis only literacy and age predicted comprehension.

Patients with low literacy (< 6th gd.) 3x more likely to incorrectly interpret warning labels.

Davis et al. JGIM 2006; 21:847–851.


What does this picture mean
What does this picture mean? Level

  • “Someone swallowed a nickel”

  • “Indigestion”

  • “Bladder”

  • “Looks like a ghost- Casper”

Slide by Terry Davis


Show me how many pills you would take in 1 day
“Show Me How Many Pills You Would Take in 1 Day” Level

John Smith Dr. Red

Take two tablets by mouth twice daily.

Humibid LA 600MG

1 refill


Rates of correct understanding vs demonstration take two tablets by mouth twice daily
Rates of Correct Understanding vs. Demonstration “Take Two Tablets by Mouth Twice Daily”

89

84

80

71

63

35


Video1
Video Tablets by Mouth Twice Daily”

  • It’s easy to make a mistake


Many things we assume people understand they don t and health outcomes are affected

Many things we assume people understand, they don’t. Tablets by Mouth Twice Daily”And, health outcomes are affected.


We have a problem and must alter systems of care
We have a problem and must alter systems of care Tablets by Mouth Twice Daily”

  • The complexity of the care system exacerbates literacy vulnerabilities

  • All aspects of our system can raise barriers

    • Appointments and referrals

    • Getting tests done

    • Paying for medicine or treatment

    • Understanding bills and insurance


The continuum of confusion now go home and safely manage your care
The Continuum of Confusion: Tablets by Mouth Twice Daily”“Now go home and safely manage your care”

PP=Prior to seeing physician


Skills needed by patient
Skills Needed by Patient Tablets by Mouth Twice Daily”

  • Read

  • Remember

  • Implement

  • Figure out complex processes

  • Relentlessly pursue….


What works
What Works? Tablets by Mouth Twice Daily”


Improving written health information
Improving Written Health Information Tablets by Mouth Twice Daily”

  • Most materials written well above the average literacy of the population

  • Guidelines available for better clear written health information

  • Any letter or form we send to patients should be vetted by experts in our health system


Improving communication

All members of team: physicians, nurses, social workers, PT/OT, dentists, nutrition, health educators, phone room, front desk staff

Principles of Clear Communication

Limit number of points

Write them down

Avoid using jargon (would your mother understand?)

Teach-back method

Improving Communication


Teach-back PT/OT, dentists, nutrition, health educators, phone room, front desk staff

Explain

Assess

Clarify

Understanding


Ask me 3
Ask Me 3 PT/OT, dentists, nutrition, health educators, phone room, front desk staff

  • What is my main problem?

  • What do I need to do?

  • Why is it important for me to do this?


Changing systems of care
Changing Systems of Care PT/OT, dentists, nutrition, health educators, phone room, front desk staff

  • Redesign how care is provided

  • Simplify care tasks

  • Make care seamless and organized

  • Integrate a well-trained workforce


Examples of system changes

Examples of System Changes PT/OT, dentists, nutrition, health educators, phone room, front desk staff


Planned care
Planned Care PT/OT, dentists, nutrition, health educators, phone room, front desk staff

Intensive

Self-care

Education

Usual Care

compared to

Rothman et al. Am J Med 2005; 118:276-284.

DeWalt et al. BMC Health Services Research. 6:30; 2006.


Heart Failure PT/OT, dentists, nutrition, health educators, phone room, front desk staff

47% lower hospitalization rate for those in planned care

DeWalt et al. BMC Health Services Research. 6:30; 2006.


Diabetes PT/OT, dentists, nutrition, health educators, phone room, front desk staff

Rothman et al. Am J Med 2005; 118:276-284.


Results according to literacy status
Results According to Literacy Status PT/OT, dentists, nutrition, health educators, phone room, front desk staff


Diabetes control results for patients with literacy above 6th grade level
Diabetes Control: PT/OT, dentists, nutrition, health educators, phone room, front desk staffResults for Patients with Literacy Above 6th Grade Level

Rothman et al. JAMA 2004, 292(14):1711-1716.


Diabetes Control: PT/OT, dentists, nutrition, health educators, phone room, front desk staffResults for Patients with Literacy at or Below 6th Grade Level

Rothman et al. JAMA 2004, 292(14):1711-1716.


Patient centered medical home1
Patient Centered Medical Home PT/OT, dentists, nutrition, health educators, phone room, front desk staff

  • Success requires us to apply the principles we tested in diabetes and heart failure to all patients and all problems

  • This requires all staff to attend to the needs of individuals

  • Clear and helpful communication will help us to achieve this goal


Summary1
Summary PT/OT, dentists, nutrition, health educators, phone room, front desk staff

  • Low health literacy is common and we need to consider patient understanding every time

  • Take health literacy into account for every initiative we do in clinic

  • Today: Think about whether your patient understands. Write it down for the patient. Ask them to tell you back (when appropriate).


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