Preprocessing Unevenly Sampled RR Interval Signals to Enhance Estimation of Heart Rate Deceleration and Acceleration Capacities in Discriminating Chronic Heart Failure Patients from Healthy Controls

Table 1

Details of datasets from CHF patients and healthy subjects (control group).

	Database	No. of subjects	Age (years)	NYHA classification
CHF	Congestive Heart Failure RR Interval Database	29	55.0 ± 11.9	I–III
	BIDMC Congestive Heart Failure Database	15	56.0 ± 11.5	III–IV
Control	Normal Sinus Rhythm RR Interval Database	54	61.3 ± 11.8	N/A
	MIT-BIH Normal Sinus Rhythm Database	18	26–45 (5 men); 20–50 (13 women)	N/A

NYHA, New York Heart Association.