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June 7, 2026Cardiology ResearchOpen Access

Nonvalvular Atrial Fibrillation and Anticoagulation in the Elderly: A Retrospective Cohort Study

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Why the study?

Does older age (76-89 years) increase the risk of anticoagulation underutilization compared to younger age (50-75 years) in patients with nonvalvular atrial fibrillation?

Population

6,386 patients with nonvalvular atrial fibrillation between 2021 and 2024, divided into age groups 50-75…

Comparison

Age 76-89 years vs Age 50-75 years

Design

Cohort

Key result

Patients aged 76-89 years had significantly higher odds of anticoagulation underutilization compared to those aged 50-75 years (OR 4.547; 95% CI 3.827-5.403).

Authors

KJKaiyu JiaERElizabeth RimskyJNJoaquim Noguer

Discussion

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Overview

Suggests age-related anticoagulation gaps in nonvalvular AF; hypothesis-generating for targeted interventions in the elderly.

Study Design

Type

Cohort (n=6,386)

Multicenter

No

Structured PICO

Does older age (76-89 years) increase the risk of anticoagulation underutilization compared to younger age (50-75 years) in patients with nonvalvular atrial fibrillation?

P
Population
6,386 patients aged 50-89 years with nonvalvular atrial fibrillation evaluated between 2021 and 2024.
E
Exposure
Age 76-89 years
C
Comparator
Age 50-75 years
O
Outcome
Anticoagulation (AC) underutilization (defined as CHA2DS2-VASc score > 2, ORBIT score >= 3, and without AC)

Main Result

Odds Ratio: 4.547 (95% CI 3.827–5.403)

Elderly patients (76-89 years) with nonvalvular atrial fibrillation are significantly more likely to experience anticoagulation underutilization compared to younger patients (50-75 years), highlighting the challenge of balancing stroke and bleeding risks.

Cite This Study

Jia et al. (2026) conducted a cohort in Nonvalvular atrial fibrillation (n=6,386). Age 76-89 years vs. Age 50-75 years was evaluated on Anticoagulation underutilization (CHA2DS2-VASc > 2, ORBIT ≥ 3, without AC) (OR 4.547, 95% CI 3.827-5.403). Patients aged 76-89 years had significantly higher odds of anticoagulation underutilization compared to those aged 50-75 years (OR 4.547; 95% CI 3.827-5.403).

synapsesocial.com/papers/6a250fbc7def13d035e1d451https://doi.org/10.14740/cr2219
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Clinical Outcomes of Oral Anticoagulation in Elderly East Asian Patients with Atrial Fibrillation: A Retrospective Single-Center Study2025
  2. 2Disparities in anticoagulation therapy for older adults with non-valvular atrial fibrillation: a comparative study of urban and suburban communities2026
  3. 3Investigation of atrial fibrillation frequency in relation to possible thromboembolic events in geriatric patients attending family medicine outpatient clinics2025
  4. 4How can we reduce thrombotic and hemorrhagic events in elderly patients with atrial fibrillation?2025 · 3 citations
  5. 5Consider frailty status and comorbidities when choosing anticoagulant treatment for older patients with atrial fibrillation2026