• Helga Yr Erlingsdottir, Audur Ketilsdottir, Jeroen M Hendriks, and Brynja Ingadottir.
• Faculty of Nursing and Midwifery, School of Health Sciences, University of Iceland, Reykjavik, Iceland.
• Patient Prefer Adher. 2023 Jan 1; 17: 262126302621-2630.

PurposeTo evaluate the disease-related knowledge of outpatients with atrial fibrillation (AF), and the relationship with health literacy and other background variables.Patients And MethodsIn this cross-sectional survey study, conducted in Iceland, patients with AF scheduled for an electrical cardioversion or AF catheter ablation were recruited from a hospital outpatient clinic. They completed the validated Atrial Fibrillation Knowledge Scale (AFKS), a 11-item instrument (with possible score 0-10, 10 being the best knowledge) which evaluates knowledge pertaining to AF in general, AF symptom detection and AF treatment. Health literacy was assessed with the 16 item European Health Literacy Survey Questionnaire (HLS-EU-Q) and patients answered questions about their background. Data was analysed with parametric tests.ResultsIn total, 185 participants completed the questionnaire (mean age 63 ±10), 77% were male, 74% with previous electrical cardioversion and 76% were on non-vitamin K antagonist oral anticoagulants (NOAC) medication. The mean score on the AFKS was 6.5 (±1.8). The best knowledge was concerning oral anticoagulation therapy (96% answered correctly) and the least knowledge was regarding responses to AF episodes (17% answered correctly). Patients with sufficient health literacy (52%) had better knowledge of AF (M 6.8 ±1.7 vs M 6.3 ±1.9, p = 0.05). Age, educational level, health literacy and AF pattern explained 22% of the variance in AF knowledge.ConclusionPatients with AF have inadequate knowledge of their condition, potentially as a result of insufficient health literacy. AF knowledge may be improved using integrated management where patients are actively involved in the care and health literacy is considered in the provided patient education.© 2023 Erlingsdottir et al.

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