Interpreting changes in quality of life in atrial fibrillation: How much change is meaningful?
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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Assessment of quality of life is constrained by a lack of cross-validation of the several AF-specific quality-of-life tools.
“Assessment of quality of life is further constrained by a lack of cross-validation of the several AF-specific quality-of-life tools.”
From 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS (2016) · cites this paper as [189]
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Body mass index and pulmonary vein isolation: real-world data on outcomes and quality of life
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Potter, T. J. R. D., Scherr, D., Pürerfellner, H., Račkauskas, G., Hansen, J., Vijgen, J. M., Phlips, T., Knecht, S., Széplaki, G., Herendael, H. V., et al. (2025) · EP Europace · doi:10.1093/europace/euaf174 · Cited by 17 · see citing works
“44,45 Meaningful improvements were also seen across the AFEQT domain scores of symptoms, daily activities, treatment concerns, and treatment satisfaction, which were observed starting at the 3-month assessment and maintained through 12 months of follow-up.”
Blomström‐Lundqvist, C., & Wettervik, V. S. (2021) · EP Europace · doi:10.1093/europace/euab318 · Cited by 17 · see citing works
Zeitler, E. P., Li, Y., Silverstein, A. P., Russo, A. M., Poole, J. E., Daniels, M. R., Al‐Khalidi, H. R., Lee, K. L., Bahnson, T. D., Anstrom, K. J., et al. (2023) · Journal of the American Heart Association · doi:10.1161/jaha.122.027871 · Cited by 17 · see citing works
Chen, P.-T., Wang, T.-J. T., HSIEH, M., Liu, J., Liu, C., Wang, K., & Laio, W.-C. (2019) · BMJ Open · doi:10.1136/bmjopen-2019-029974 · Cited by 17 · see citing works
“It is difficult to compare our findings with other studies because most studies included only patients treated with warfarin27 and used different adherence measures.27 Nevertheless, our study subjects reported relatively good adherence to anticoagulant therapy with an average score of 8.8 (SD=1.9) out of the possible…”
MethodInfluentialCoyne, K. S., Edvardsson, N. G., & Rydén, A. (2017) · Value in Health · doi:10.1016/j.jval.2017.06.005 · Cited by 16 · see citing works
Bai, Y., Bai, R., Wu, J., Zhang, T., Liu, N., Shi, X., Liu, X., Liu, X., Du, X., Dong, J., et al. (2015) · Journal of the American Heart Association · doi:10.1161/jaha.115.002130 · Cited by 17 · see citing works
BIVIANO, A. B., Hunter, T. D., Dandamudi, G., Fishel, R., Gidney, B., Herweg, B., Oza, S. R., Patel, A. M., WANG, H., & Pollak, S. J. (2017) · Pacing and Clinical Electrophysiology · doi:10.1111/pace.13041 · Cited by 16 · see citing works
Safety and Effectiveness of a Next-Generation Contact Force Catheter
Lo, M. Y., Sanders, P., Sommer, P., Kalman, J. M., Siddiqui, U., Sundaram, S., Piorkowski, C., Olson, N., Madej, S., & Gibson, D. N. (2021) · JACC. Clinical electrophysiology · doi:10.1016/j.jacep.2021.01.019 · Cited by 14 · see citing works
Tailachidis, P., Tsimtsiou, Z., Galanis, P., Theodorou, M., Kouvelas, D., & Athanasakis, K. (2016) · PubMed Central · Cited by 13 · see citing works
Symptom Clusters, Psychological Distress, and Quality of Life in Patients with Atrial Fibrillation
Bang, C. H., & Park, S. (2023) · Healthcare · doi:10.3390/healthcare11091353 · Cited by 12 · see citing works
“When patients with AF experience symptoms, they and their caregivers or supporters face physical and psychological stress, as well as problems in daily and social life, which leads to a lower quality of life [21].”
BackgroundStreur, M. M., Ratcliffe, S. J., Callans, D. J., Shoemaker, M. B., & Riegel, B. J. (2018) · Pacing and Clinical Electrophysiology · doi:10.1111/pace.13356 · Cited by 12 · see citing works
Steinberg, B. A., Holmes, D. N., Pieper, K. S., Allen, L. A., Chan, P. S., Ezekowitz, M. D., Freeman, J. V., Fonarow, G. C., Gersh, B. J., Hylek, E. M., et al. (2020) · Circulation Arrhythmia and Electrophysiology · doi:10.1161/circep.119.007775 · Cited by 12 · see citing works
Reddy, V. Y., Kottkamp, H., Calkins, H. G., Nair, D. G., Sommer, P., Hussein, A. A., Schumacher, B., Dukkipati, S. R., Neužil, P., Oza, S. R., et al. (2026) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2025.10.084 · Cited by 11 · see citing works
Osmancik, P. P., Neužil, P., Hozmanová, J., Petrů, J., Heřman, D., Královec, Š., Hozman, M., Tichý, M., Waldauf, P., Karel, T., et al. (2026) · Circulation · doi:10.1161/circulationaha.126.079484 · Cited by 11 · see citing works
Ha, A. C. T., Stewart, J. A., Klein, G. J., Roy, D., Connolly, S. J., Koren, A., & Dorian, P. (2020) · American Heart Journal · doi:10.1016/j.ahj.2020.05.004 · Cited by 9 · see citing works
Selecting symptom instruments for cardiovascular populations
Zimmerman, L. M., Pozehl, B., Vuckovic, K. M., Barnason, S. A., Schulz, P., Seo, Y., Ryan, C. J., Zerwic, J. J., & DeVon, H. A. (2016) · Heart & Lung · doi:10.1016/j.hrtlng.2016.08.012 · Cited by 9 · see citing works
Feinberg, J. B., Olsen, M. H., Brandes, A., Raymond, L., Nielsen, W. B., Nielsen, E. E., Steensgaard-Hansen, F., Dixen, U., Pedersen, O. D., Gang, U. J. O., et al. (2021) · BMJ Open · doi:10.1136/bmjopen-2020-044744 · Cited by 7 · see citing works
Lo, M. Y., Nair, D. G., MANSOUR, M. C., Calkins, H. G., Reddy, V. Y., Colley, B. J., Tanaka‐Esposito, C., Sundaram, S., DeLurgio, D. B., Sanders, P., et al. (2022) · Journal of Cardiovascular Electrophysiology · doi:10.1111/jce.15742 · Cited by 7 · see citing works
“It has been estimated that a change in AFEQT score of at least 19 points is very likely to indicate a substantial improvement in QOL.12 In this study, the average improvement from baseline in AFEQT score was 31.6 indicating subjects experienced a significant improvement in their QOL beginning shortly after their index…”
BackgroundInfluentialRosenstrøm, S. M., Risom, S. S., Kallemose, T., Dixen, U., Hove, J. D., & Brødsgaard, A. (2023) · PLoS ONE · doi:10.1371/journal.pone.0282639 · Cited by 6 · see citing works
Klavebäck, S., Skúladóttir, H., Olbers, J., Östergren, J., & Braunschweig, F. (2023) · Scandinavian Cardiovascular Journal · doi:10.1080/14017431.2023.2236341 · Cited by 6 · see citing works
“The disease specific and validated AFEQT questionnaire has been shown to be internally consistent (Cronbach alpha coefficient > 0.88), and sensitive to the severity of AF and changes over time [9, 24].”
BackgroundInfluentialDiscordant Treatment Goals for Patients With Atrial Fibrillation and Clinical Trials Metrics
Zenger, B., Spertus, J. A., Torre, M., Lyons, A., Bunch, T. J., Hess, R., Zhang, Y., Piccini, J. P., Millar, M. M., Lobban, T., et al. (2024) · JACC. Clinical electrophysiology · doi:10.1016/j.jacep.2024.06.026 · Cited by 6 · see citing works
Lin, H., Luo, H., Lin, M. F., Li, H., & Sun, D. (2024) · The Journal of Cardiovascular Nursing · doi:10.1097/jcn.0000000000001133 · Cited by 6 · see citing works
Balloon-in-Basket Pulsed Field Ablation for Pulmonary Vein Isolation
Verma, A., Lo, M. Y., Woods, C. E., Hussein, A. A., Gambhir, A., Sundaram, S., Sanders, P., DeLurgio, D. B., Mountantonakis, S., Neužil, P., et al. (2026) · JACC. Clinical electrophysiology · doi:10.1016/j.jacep.2026.01.006 · Cited by 4 · see citing works
Haanschoten, D. M., Vernooy, K., Beukema, R. J., Szili‐Törok, T., ter Bekke, R. M. A., Khan, M., de Jong, J. S. S. G., Otten, A. M., Adiyaman, A., Smit, J. J. J., et al. (2020) · Cardiology · doi:10.1159/000509661 · Cited by 4 · see citing works
Dilk, P., Uhe, T., Forkmann, M., Eckardt, L., Bode, K., Seewöster, T., Gaspar, T., Neef, M., Dinov, B., Bačák, M., et al. (2025) · American Heart Journal · doi:10.1016/j.ahj.2025.06.003 · Cited by 3 · see citing works
Koutoukidis, D. A., Jones, N. R., Taylor, C. J., Casadei, B., & Aveyard, P. N. (2020) · Nutrition Metabolism and Cardiovascular Diseases · doi:10.1016/j.numecd.2020.07.009 · Cited by 3 · see citing works
“The symptom score is a measure of 107 symptom severity in AF patients validated against a clinician-reported measure of QoL in 108 AF, with a 3-point change indicating a clinically significant difference [14, 15].”
MethodLiliequist, B. E., Särnholm, J., Skúladóttir, H., Ólafsdóttir, E., Ljótsson, B., & Braunschweig, F. (2023) · JMIR Cardio · doi:10.2196/53815 · Cited by 3 · see citing works
“The AFEQT has been shown to be sensitive to clinical change, with a change of 18.9 points corresponding to a meaningful improvement as assessed by a physician [19,20].”
MethodInfluentialCardioversion for Atrial Fibrillation Improves Quality of Life: It's Obvious (or Isn't It?)
Dorian, P., & Ha, A. C. T. (2017) · Canadian Journal of Cardiology · doi:10.1016/j.cjca.2017.01.013 · Cited by 3 · see citing works
Zhu, X., Yin, X., Jiang, S., Wang, M., & Cheng, J. (2025) · BMJ Open · doi:10.1136/bmjopen-2025-100123 · Cited by 2 · see citing works
“The WHOQOL-BREF is a widely used tool for assessing QoL across four domains: physical, psychological, social and environmental, along with two overall QoL items and health perceptions.”
Using Atrial Fibrillation Symptoms to Guide Treatment: Becoming PROs at Improving Quality of Life
Zenger, B., & Steinberg, B. A. (2022) · Current Cardiovascular Risk Reports · doi:10.1007/s12170-022-00695-x · Cited by 2 · see citing works
Whom do you believe? The patient or the ECG?
Dorian, P. (2015) · Heart Rhythm · doi:10.1016/j.hrthm.2015.01.041 · Cited by 2 · see citing works
Wang, P. J., Gerstenfeld, E. P., Piccini, J. P., Verma, A., Bunch, T. J., Blomström‐Lundqvist, C., Tzeis, S. E., Andrade, J. G., Camm, A. J., Chen, L. Y., et al. (2026) · Circulation Arrhythmia and Electrophysiology · doi:10.1161/circep.126.015082 · Cited by 1 · see citing works
Quality of life with atrial fibrillation
Blomström‐Lundqvist, C. (2020) · Elsevier eBooks · doi:10.1016/b978-0-12-817728-0.00048-6 · Cited by 1 · see citing works
Sanip, Z., Yusof, Z., Loong, N. S., Naing, N. N., & Isa, W. Y. H. W. (2023) · Cureus · doi:10.7759/cureus.37181 · Cited by 1 · see citing works
“A more AF-specific tool, such as the Atrial Fibrillation Effect on QualiTy of Life (AFEQT), could provide more accurate information [22].”
MethodAtrial Fibrillation in Rural Adults: An Inpatient Evaluation of Clinical Guidelines Adherence
Klug, M. J. (2015) · UA Campus Repository (The University of Arizona)
Cardiac rehabilitation after catheter ablation of atrial fibrilation
Istrătoaie, S., Cismaru, G. L., Roşu, R., Bian, A., Gurzau, D., Frîngu, F. I., Caloian, B., Comşa, H., Marțiș, A., Guşetu, G., et al. (2018) · Balneo Research Journal · doi:10.12680/balneo.2018.208
Atrial Fibrillation a Benign Condition? Quality of Life Approach
Ţică, O., Țica, O., Hatos, A., Pantea-Roșan, L. R., & Popescu, M. I. (2018) · Central European Journal of Clinical Research · doi:10.2478/cejcr-2018-0008
“Assessment of the quality of life is further constrained by a lack of cross-validation of the several AF-specific quality of life tools [12,13].”
BackgroundExtending physicians’ reach in grasping AF symptoms
Mirwais, M., & Reynolds, M. R. (2020) · American Heart Journal · doi:10.1016/j.ahj.2020.04.012
Measuring “symptomatic” atrial fibrillation: One view is no view
Steinberg, B. A., & Bunch, T. J. (2022) · Heart Rhythm · doi:10.1016/j.hrthm.2022.06.028
Lei, T. T., & Jiang, F. L. (2023) · ICRRD Quality Index Research Journal · doi:10.53272/icrrd.v4i3.9
“This study used the University of Toronto AF Severity Scale (AFSS) [19]to assess patients' symptoms.”
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Core and bridging symptoms in patients with atrial fibrillation: a network analysis
Sun, D., Yang, X., Li, H., Li, G., & Lin, H. (2025) · Frontiers in Cardiovascular Medicine · doi:10.3389/fcvm.2025.1617872
Sale, A., & Yu, J. (2022) · Figshare · doi:10.6084/m9.figshare.21351220
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Duytschaever, M., Vijgen, J., Neuzil, P., Grimaldi, M., Verma, A., Potter, T. D., Macle, L., Kautzner, J., Linz, D., Anić, A., et al. (2026) · Heart Rhythm · doi:10.1016/j.hrthm.2026.10.008
Kakarla, S., Iwakawa, H., Andrade, J. G., Ariyaratnam, J., Gunawardene, M., Marrouche, N., Middeldorp, M. E., Elliott, A. D., Kistler, P. M., Kalman, J. M., et al. (2026) · Heart Rhythm · doi:10.1016/j.hrthm.2026.10.039
- 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
- ORCID
- 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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