Cited by 95Atrial Fibrillation Management and OutcomesHealth Education and ValidationHealth Systems, Economic Evaluations, Quality of Life

Interpreting changes in quality of life in atrial fibrillation: How much change is meaningful?

Dorian, Paul, Burk, Caroline, Mullin, Christopher M., Bubien, Rosemary, Godejohn, Donna, Reynolds, Matthew R., Lakkireddy, Dhanunjaya R., Wimmer, Alan P. +2 more·2013·American Heart Journal

Abstract

Background The Atrial Fibrillation Effect on QualiTy of Life (AFEQT) questionnaire is a novel quality of life (QOL) measure previously shown to be valid, reliable, and sensitive to clinical change in patients with atrial fibrillation (AF). The clinical relevance of a given change in the score is not known. The most useful "anchor" for a measure of meaningful change in QOL is patient-reported magnitude of change.Objective The aim of this study was to define the interpretability of changes in the AFEQT score from the patients' perspective.Methods With the use of the original validation study of AFEQT, in which 210 patients completed the questionnaire at baseline and at 3 months, we estimated the AFEQT score corresponding to a meaningful improvement in QOL using the patients' assessments of global change in QOL, AF symptoms from the Atrial Fibrillation Severity Scale (AFSS), and physicians' assessment of global QOL over the 3 months, as anchors.Results In patients with a moderate improvement in global QOL, the AFEQT scores increased from 51.9 ± 21.8 to 70.8 ± 17.4 (an increase of 18.9 ± 20.7), compared with an increase of 6.9 ± 16.9 units in patients with "unimportant change" in global QOL. Physicians' global assessment yielded a similar change in AFEQT score corresponding to a moderate change in global QOL (21.3 ± 20.2 units). Patients with moderate improvement in AF symptom severity using the AFSS scale had an increase of 17.9 ± 11.8 units on the AFEQT scale. A change in 19 units in the AFEQT score corresponded to a 0.9 SD unit change or greater than a minimal important difference from a distribution based method.Conclusions A meaningful improvement in QOL in patients with AF can be measured from a change in the AFEQT score. These results can assist in monitoring patient progress and interpreting the effects of interventions in patients with AF.

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Crossref · 10.1016/j.ahj.2013.04.015

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Authors
Dorian, P., Burk, C., Mullin, C. M., Bubien, R., Godejohn, D., Reynolds, M. R., Lakkireddy, D. R., Wimmer, A. P., Bhandari, A., & Spertus, J.
Affiliations
  • St. Michael's Hospital (CA)
  • University of Alabama at Birmingham (US)
  • Beth Israel Deaconess Medical Center (US)
  • The University of Kansas Health System (US)
  • Good Samaritan Hospital (US)
Corresponding author
Dorian, Paul
Venue
American Heart Journal
Publisher
Elsevier BV
Published
2013-08
Volume
166
Issue
2
Pages
381-387.e8
ISSN
0002-8703 (ISSN-L)
OpenAlex
W2158493087
Cited by
95
References
27
Citations by year
2026: 9 · 2025: 4 · 2024: 7 · 2023: 8 · 2022: 7 · 2021: 7 · 2020: 18 · 2019: 5 · 2018: 4 · 2017: 11 · 2016: 8 · 2015: 6 · 2014: 1
FWCI
3.41
Type
journal article
Language
en
Open access
closed
Locations
  • American Heart Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
Heart Rhythm Society
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
  • Social Sciences › Education › Health Education and Validation
  • Social Sciences › Economics, Econometrics and Finance › Economics and Econometrics › Health Systems, Economic Evaluations, Quality of Life
Keywords
atrial fibrillation, quality of life, minimal important difference, meaningful change, patient-reported outcomes, anchor method, symptom severity
MeSH terms
Aged, Atrial Fibrillation, Female, Humans, Male, Middle Aged, Quality of Life, Surveys and Questionnaires, Socioeconomic Factors

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