Key result
The correlation dimension of heart rate variability decreases with age after 20-25 years (P<0.05) and is higher in females than males during the night (P<0.001).
Population
116 clinically healthy subjects, including 44 males in four age groups and 72 additional subjects of both…
Design
Cross-sectional
Follow-up
24 hours
Authors
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HRV correlation dimension differences by age and sex warrant cautious interpretation; leaves open diagnostic utility pending longitudinal validation.
Observational (n=116)
p-value: p=<0.05
Fractal scaling of heart rate variability exhibits a circadian rhythm and varies significantly with age and gender, suggesting its potential utility as a diagnostic tool in cardiology.
Otsuka et al. (1997) conducted an observational in Healthy (n=116). Age and gender vs. Different age groups and genders was evaluated on Correlation dimension (CD) of heart rate variability (p=<0.05). The correlation dimension of heart rate variability decreases with age after 20-25 years (P<0.05) and is higher in females than males during the night (P<0.001).
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