Why the study?
Which method of analyzing heart rate variability (scale-dependent vs scale-independent measures) performs best in separating healthy subjects from heart disease patients and in survival analysis?
Which method of analyzing heart rate variability (scale-dependent vs scale-independent measures) performs best in separating healthy subjects from heart disease patients and in survival analysis?
Scale-independent measures of heart rate variability outperform scale-dependent measures for survival analysis, while scale-dependent measures are better for distinguishing healthy subjects from those with heart disease.
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May guide choice of HRV fractal measures for diagnostic versus prognostic applications; leaves open validation in prospective cohorts.
Særmark et al. (2000) studied this question.
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