Rhythm annotation and interobserver reproducibility of measures of heart rate variability.
Interobserver reproducibility is high for time domain and power spectral measures of heart rate variability, with greater reproducibility for low-frequency measures, and especially for the standard deviation of the 5-minute RR intervals over 24 hours, than for high-frequency measures. Overall interobserver variability of < 8% for these measures is largely (50% to 75%) explained by interobserver differences in annotation of supraventricular ectopy and sinus arrhythmia.
Department of Medicine, New York Hospital-Comell Medical Center, New York, USA.
D J
DJ
Kroll
L A
LA
Freed
K M
KM
Stein
J S
JS
Borer
P
P
Kligfield
D000328:Adult; D000368:Aged; D018880:Atrial Premature Complexes; D015716:Electrocardiography, Ambulatory; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D015203:Reproducibility of Results; D018879:Ventricular Premature Complexes