Key result
Lower baseline high-frequency heart rate variability was associated with a significantly increased risk of incident hypertension over 3 years (OR 2.44; 95% CI 1.15-5.20 for lowest vs highest quartile).
Why the study?
Is cardiac autonomic function measured by heart rate variability associated with prevalent and incident hypertension in a population-based cohort?
Population
2,061 examinees from the biracial Atherosclerosis Risk in Communities cohort, including 650 with prevalent…
Comparison
Cardiac autonomic function measured by heart… vs Higher vs lower quartiles of HRV indices
Design
Cohort
Follow-up
3 years
Authors
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HRV may refine hypertension risk stratification; leaves open whether autonomic modulation prevents incident cases.
Cohort (n=2,061)
Is cardiac autonomic function measured by heart rate variability associated with prevalent and incident hypertension in a population-based cohort?
Effect estimate: OR 2.44 (95% CI 1.15-5.20)
Reduced vagal function and sympatho-vagal imbalance, as measured by heart rate variability, are associated with an increased risk of developing hypertension.
Liao et al. (1996) conducted a cohort in Hypertension (n=2,061). Heart rate variability (HRV) vs. Highest quartile of high frequency (HF) power was evaluated on Incident hypertension (OR 2.44, 95% CI 1.15-5.20). Lower baseline high-frequency heart rate variability was associated with a significantly increased risk of incident hypertension over 3 years (OR 2.44; 95% CI 1.15-5.20 for lowest vs highest quartile).
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