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The atrial fibrillation knowledge scale: development, validation and results.

Jeroen M L Hendriks¹, Harry J G M Crijns, Robert G Tieleman

¹Maastricht University Medical Centre, Department of Cardiology, Department of Health Services Research, School for Public Health and Primary Care (CAPHRI), Maastricht, The Netherlands.

International Journal of Cardiology

|January 12, 2013

Summary

A new 11-item scale effectively measures patient knowledge of atrial fibrillation (AF), including disease, symptoms, and treatment. This validated tool helps tailor patient education for better AF management.

Keywords:

Atrial fibrillation Instrument development Knowledge Outpatient care Patient education

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Area of Science:

Cardiology
Patient Education
Health Outcomes

Background:

Effective management of atrial fibrillation (AF) relies on patient understanding of the condition and its treatment.
Existing tools do not adequately assess AF patient knowledge across disease, symptom recognition, and therapy.
A validated instrument is needed to identify knowledge gaps in AF patients.

Purpose of the Study:

To develop and validate a comprehensive knowledge scale for atrial fibrillation (AF) patients.
To assess the scale's ability to measure understanding of AF nature, consequences, and therapy.
To provide a tool for tailoring patient education in AF management.

Main Methods:

Developed scale based on existing AF questionnaires and heart failure knowledge scales.
Evaluated content validity with 24 cardiology nurses and 2 cardiologists.
Assessed face validity with 8 AF patients; construct validity via factor analysis of 529 patients.
Determined internal consistency using Cronbach's α and tested for sensitivity.

Main Results:

The 11-item AF knowledge scale covers AF, symptom recognition, and treatment.
Content, face, and construct validity were deemed acceptable.
Cronbach's α was .58; the scale differentiated knowledge levels between new and follow-up patients.

Conclusions:

The AF knowledge scale is a valid instrument for assessing patient understanding.
The scale can differentiate knowledge levels in AF patients over time.
This tool is suitable for outpatient settings to personalize AF patient education.