Heart failure & cardiomyopathies

Polygenic risk-based prediction of heart failure in young patients with atrial fibrillation: an analysis from UK Biobank

EuropacePublished Retrospective cohort study

Main finding · Incident HFResult — go to the resultAdjusted hazard ratio 1.18 95% CI 1.05–1.32

Authors' conclusion

PRS for HF can significantly improve the prediction of incident HF in patients with AF, especially in the young population

Study context

Population
White Caucasian UK Biobank participants with newly diagnosed atrial fibrillation (AF) without prior heart failure (HF); mean age 69.0 ± 6.9 years
Participants
21,167 participants
Exposure
Moderate-high vs low polygenic risk score for HF
Outcome
Incident HF
Follow-up
Median 3.8 (1.4-7.2) years
Methodological detailsUK Biobank
  • UK Biobank

Main finding

As reported in the abstract

Adjusted hazard ratio

1.18

95% CI 1.05–1.32

P = 0.005

Moderate-high PRSvs Low PRS
adjusted HR 1.18 (95% CI 1.05–1.32); P = 0.005
Incidence rate of HF (per 1000 patient-years), total population
29.9

Observational data: associations, not effects.

Further findings

OutcomeAdjusted HR (95% CI)
Incident HF, by age subgroupYoung AF (age <60 years)2.14 (1.29–3.57)
Incident HF, by age subgroupOld AF (age ≥60 years)1.13 (1.01–1.27)

Time from AF diagnosis to incident HF (young AF)

P = 0.001

  • Incident HF, by age subgroup: P-for-interaction = 0.015

Net reclassification improvement from adding polygenic risk score (PRS) to clinical risk factors (young AF)

Net reclassification improvement
29.7% (P = 0.003)

Original publication

Polygenic risk-based prediction of heart failure in young patients with atrial fibrillation: an analysis from UK Biobank. Europace. Published 19 May 2025. doi:10.1093/europace/euaf104

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