Use of Non-Vitamin K Antagonist Oral Anticoagulants Among Patients with Nonvalvular Atrial Fibrillation and Multimorbidity



Deitelzweig, Steven, Keshishian, Allison, Kang, Amiee, Dhamane, Amol D, Luo, Xuemei, Klem, Christian, Rosenblatt, Lisa, Mardekian, Jack, Jiang, Jenny, Yuce, Huseyin
et al (show 1 more authors) (2021) Use of Non-Vitamin K Antagonist Oral Anticoagulants Among Patients with Nonvalvular Atrial Fibrillation and Multimorbidity. ADVANCES IN THERAPY, 38 (6). pp. 3166-3184.

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Abstract

<h4>Introduction</h4>Non-valvular atrial fibrillation (NVAF) is often accompanied by multiple comorbid conditions, which increase the associated risks and complexity of patient management. This study evaluated the risk of stroke/systemic embolism (SE) and major bleeding (MB) among multimorbid patients with NVAF who were prescribed non-vitamin K antagonist oral anticoagulants (NOACs) or warfarin.<h4>Methods</h4>A retrospective study of patients with NVAF and high multimorbidity who initiated apixaban, dabigatran, rivaroxaban, or warfarin from 1 January 2013 to 30 September 2015 was conducted using five insurance claims databases. Multimorbidity was defined as six or more comorbid conditions, and 1:1 propensity score matching (PSM) was conducted between the NOAC-warfarin and NOAC-NOAC cohorts. Cox proportional hazard models were used to evaluate the hazard ratios of stroke/SE and MB.<h4>Results</h4>Of the NVAF population (n = 466,991), 33.4% (n = 155,959) had multimorbidity, including 36,921 apixaban, 10,248 dabigatran, 45,509 rivaroxaban, and 63,281 warfarin patients. Compared to warfarin, apixaban and rivaroxaban were associated with a lower risk of stroke/SE (hazard ratio [HR] 0.63, 95% CI 0.54-0.74; HR 0.70, 95% CI 0.64-0.77, respectively). Apixaban and dabigatran were associated with a lower risk of MB (HR 0.61, 95% CI 0.56-0.67; HR 0.75, 95% CI 0.66-0.86, respectively) and rivaroxaban was associated with a higher risk of MB (HR 1.06, 95% CI 1.01-1.12) compared to warfarin.<h4>Conclusions</h4>Among patients with NVAF and six or more comorbid conditions, NOACs were associated with varying risk of stroke/SE and MB compared to warfarin and to each other. Rather than a "one drug fits all" approach, our results may be useful for appropriate OAC treatment for multimorbid patients.

Item Type: Article
Uncontrolled Keywords: Anticoagulation, Bleeding, Multimorbidity, Outcomes, Stroke
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Life Courses and Medical Sciences
Depositing User: Symplectic Admin
Date Deposited: 09 Oct 2023 14:27
Last Modified: 09 Oct 2023 14:28
DOI: 10.1007/s12325-021-01724-8
Open Access URL: https://doi.org/10.1007/s12325-021-01724-8
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3173565