Health Literacy Adapter

Required Inputs

Methodology

Step 1: Health Literacy Level Determination

• Apply or interpret validated health literacy assessment:
  • REALM-SF (Rapid Estimate of Adult Literacy in Medicine - Short Form):
    • 7 medical words, patient reads aloud, score 0-7
    • 0-3: limited literacy (3rd grade and below)
    • 4-6: marginal literacy (4th-6th grade)
    • 7: adequate literacy (7th grade and above)
  • Newest Vital Sign (NVS):
    • 6 questions about a nutrition label, score 0-6
    • 0-1: high likelihood of limited literacy
    • 2-3: possibility of limited literacy
    • 4-6: adequate literacy
  • TOFHLA (Test of Functional Health Literacy in Adults):
    • Reading comprehension (50 items) + numeracy (17 items)
    • 0-53: inadequate health literacy
    • 54-66: marginal health literacy
    • 67-100: adequate health literacy
• When formal assessment is not available, use proxy indicators:
  • Education level (not always predictive but provides baseline)
  • Patient portal engagement level
  • Teach-back performance history
  • Primary language and LEP status
  • Age (literacy challenges increase in elderly populations)

Step 2: Content Analysis and Gap Assessment

• Analyze source content characteristics:
  • Current reading grade level (Flesch-Kincaid, SMOG)
  • Medical terminology density (terms per 100 words)
  • Sentence complexity (average length, clause count)
  • Numeracy demands (dosage calculations, percentages, risk ratios)
  • Visual support (present/absent, quality, relevance)
  • Action clarity (specific, vague, assumed knowledge)
• Calculate literacy gap: difference between content level and patient literacy level
• Determine transformation intensity:
  • Gap of 0-2 grade levels: Light adaptation
  • Gap of 3-5 grade levels: Moderate adaptation
  • Gap of 6+ grade levels: Intensive adaptation

Step 3: Graduated Content Transformation

• Light Adaptation (adequate literacy, minor gaps):
  • Replace technical terms with plain-language equivalents where possible
  • Shorten sentences exceeding 25 words
  • Add section headers for navigation
  • Bold key action items
  • Verify numerical information is clearly contextualized
• Moderate Adaptation (marginal literacy):
  • Reduce reading level to 6th grade target
  • Restructure to inverted pyramid (most important first)
  • Replace all medical jargon or define in context
  • Add visual aids (icons, simple diagrams, pictographs)
  • Convert complex lists to numbered sequential steps
  • Use concrete examples instead of abstract concepts
  • Add teach-back prompts after each major section
• Intensive Adaptation (limited literacy):
  • Reduce reading level to 3rd-4th grade target
  • Use very short sentences (8-10 words maximum)
  • One concept per page or screen
  • Heavy visual support (pictographic instructions, photo sequences)
  • Audio/video supplement recommendation
  • Medication schedule as visual grid with pill images
  • Eliminate or drastically simplify all numerical content
  • Use icon-based warning signs instead of text-heavy lists
  • Recommend in-person education with teach-back

Step 4: Numeracy Adaptation

• Assess and adapt numerical content:
  • Adequate numeracy: Present numbers with context ("3 out of 100 people")
  • Limited numeracy: Use simple frequency ("very rare") or visual representations
  • Medication dosing: Use visual aids (pill images with clock times)
  • Risk communication: Use icon arrays or pictographs instead of percentages
  • Lab values: Use simple ranges ("normal", "too high", "too low") with color coding
  • Appointment times: Use 12-hour clock with AM/PM, include day of week
• Never assume patients can interpret fractions, decimals, or percentages without support

Step 5: Modality-Specific Optimization

• Print materials: Layout, font, spacing, visual hierarchy per SAM criteria
• Digital/portal: Progressive disclosure, chunked content, accessible design (WCAG 2.1)
• Verbal scripts: Staff talking points with embedded teach-back, pause points
• Video scripts: Scene-by-scene storyboard, reading level of narration, visual support notes
• SMS/text: Character-limited messages with single action per message, link to detailed content
• Each modality adaptation maintains consistent key messages across channels

Step 6: Effectiveness Verification

• Apply validation measures:
  • Readability scoring (Flesch-Kincaid target achieved)
  • SAM assessment (target Superior: 70-100%)
  • CDC Clear Communication Index (target 90+)
  • Cognitive load assessment (Miller Law: 7 plus or minus 2 information chunks)
  • Usability testing with representative patients (recommended)
• Generate teach-back assessment protocol for staff use
• Create feedback mechanism for ongoing content improvement

Output Specification

adapted_content:
  literacy_assessment:
    instrument: string
    score: number
    level: string
  source_analysis:
    original_grade_level: number
    terminology_density: number
    numeracy_demands: string
    literacy_gap: number
    transformation_intensity: string
  adapted_output:
    target_grade_level: number
    achieved_grade_level: number
    modality: string
    sections:
      - heading: string
        content: string
        visual_support: string
        teach_back_prompt: string
    numeracy_adaptations:
      - original: string
        adapted: string
        method: string
  quality_scores:
    flesch_kincaid: number
    sam_score: number
    cci_score: number
    cognitive_load_chunks: number
  recommendations:
    supplemental_modalities: array
    staff_communication_tips: array
    follow_up_education: array

Analysis Framework

Apply the AHRQ Health Literacy Universal Precautions Toolkit framework:

1. Awareness: Build organizational awareness that health literacy is everyone's responsibility
2. Written communication: Apply plain language, appropriate readability, effective design
3. Verbal communication: Use teach-back, chunk and check, patient-friendly language
4. Self-management support: Simplify action plans, use visual aids, set achievable goals
5. Supportive systems: Design systems that reduce literacy demands (simplified forms, navigation aids)

Examples

Example: Warfarin Self-Management Instructions

• Patient: 72-year-old, REALM-SF score 3 (limited literacy), Spanish-speaking
• Source: 11th grade clinic handout with INR ranges, food interaction tables, dose adjustment algorithms
• Adaptation level: Intensive
• Adapted output:
  • 3rd grade reading level in Spanish
  • Visual pill calendar with color-coded doses
  • Traffic light system for foods: green (safe), yellow (small amounts), red (avoid)
  • Photo-based bleeding warning signs instead of text descriptions
  • Single action per page: "Take your blood thinner pill every day at the same time"
  • Audio companion recommended in addition to print
  • Teach-back: "Show me on this calendar when you take your pill"
• Scores: FK Grade 3.2, SAM 88% (Superior), CCI 94

Guidelines

• HIPAA Compliance: Health literacy assessments are part of the medical record and subject to HIPAA protections. De-identify all literacy assessment data used for program evaluation or quality improvement. Never label patients externally as "low literacy."
• Stigma Prevention: Use Universal Precautions approach publicly. Targeted adaptations should be delivered naturally without drawing attention to literacy level. Avoid phrases like "simplified version" in patient-facing labels.
• Clinical Accuracy: Adaptations must not sacrifice medical accuracy for simplicity. When simplification creates ambiguity, retain the precise term with an embedded plain-language definition.
• Cultural Responsiveness: Literacy adaptation must be culturally appropriate. Health literacy varies independently from education and language. Avoid assumptions based on demographics.
• ADA Compliance: Ensure adapted materials meet accessibility requirements for visual impairment (large print, screen reader compatible), hearing impairment (captioned video), and cognitive disability.
• Continuous Assessment: Health literacy is not static. Reassess when patients have new conditions, new medications, or demonstrate changed comprehension through teach-back.

Validation Checklist

• Health literacy level assessed or estimated using validated approach
• Literacy gap calculated and transformation intensity determined
• Content adapted to target reading level for assessed literacy
• Medical terminology replaced or defined in context
• Numeracy content adapted with visual support where needed
• Modality-specific optimizations applied
• SAM assessment completed with Superior rating target
• Teach-back prompts included for each critical section
• Clinical accuracy preserved through adaptation
• Cultural appropriateness verified
• Accessibility requirements met (ADA, WCAG)
• HIPAA compliance maintained for literacy assessment data
• Stigma-free delivery approach documented