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05-04-2019 | Uitgave 8/2019

Quality of Life Research 8/2019

Factors associated with low health-related quality of life among younger and older Thai patients with non-valvular atrial fibrillation

Quality of Life Research > Uitgave 8/2019
Varalak Srinonprasert, Kasem Ratanasumawong, Tomon Thongsri, Somchai Dutsadeevettakul, Pongpun Jittham, Weerapan Wiwatworapan, Rungroj Krittayaphong, COOL AF Investigators
Belangrijke opmerkingen
COOL AF Investigators members of the group are listed in Acknowledgements.

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Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.



The aim of this study was to investigate the factors associated with low health-related quality of life (HRQoL) compared between younger and older Thai patients with non-valvular atrial fibrillation (NVAF).


This is a cross-sectional analysis of baseline data from a prospective NVAF registry from 24 hospitals located across Thailand. Patient demographic, clinical, lifestyle, and medication data were collected at baseline. EuroQOL/EQ-5D-3L was used to assess HRQoL. Health utility was calculated for the entire study population, and low HRQoL was defined as the lowest quartile. Multivariate logistic regression was used to identify factors that significantly predict low HRQoL among younger and older (≥ 65 years) patients with NVAF.


Among the 3218 participants that were enrolled, 61.0% were aged older than 65 years. Mean HRQoL was lower in older than in younger patients (0.72 ± 0.26 vs. 0.84 ± 0.20; p < 0.001). Factors associated with low HRQoL among younger NVAF patients were the treatment-related factors bleeding history (p = 0.006) and taking warfarin (p = 0.001). Among older patients, the NVAF-related complications ischemic stroke or TIA, heart failure (HF), and dementia (all p < 0.001) were all significantly associated with low HRQoL. Dementia is the factor that most adversely influences low HRQoL among older NVAF. Interestingly, symptomatic NVAF was found to be a protective factor for low HRQoL (p < 0.001).


Bleeding history and taking warfarin among younger patients, and ischemic stroke/TIA, HF, and dementia among older patients are significant predictors of low HRQoL. These factors should be taken into consideration when selecting treatment options for patients with NVAF.

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