Better CV health associated with lower AF risk in older adul
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Among older individuals, better baseline CV health was associated with lower risk for incident atrial fibrillation, researchers reported.

This study aimed to evaluate whether baseline and changes in cardiovascular health (CVH) were related to incident atrial fibrillation (AF) risk in the elderly population.

From the Korea National Health Insurance Service-Senior cohort, we included 208 598 participants without prior AF (median age: 70 (IQR 66–74) years; 90 916 (43.6%) men) who underwent national health check-ups. Using the six metrics of the American Heart Association, participants were categorized as having low, moderate and high CVH.

-- Over a median follow-up of 7.2 years, 7818 cases of incident AF occurred.

-- In multivariable analysis, moderate and high CVH status at baseline were associated with a lower risk of incident AF.

-- However, in 109 695 participants with changes in CVH between the first and second check-ups, the direction of change in CVH scores showed no consistent association with future AF incidence.

-- In newly diagnosed participants with AF, the incidence of the composite outcome (stroke, major bleeding and all-cause death) decreased with every 1-point increase in the baseline CVH score.

Conclusively, in the general elderly population, better baseline CVH metrics were associated with lower incident AF risk. In participants with newly diagnosed AF, better CVH was also associated with lower incidence of future composite outcomes. However, the direction of change in CVH status within 2 years showed an inconsistent influence on incident AF risk.