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Low frequency power (normalized)
lf_n
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
5 minute window start time
start__sec_
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
The ratio of low to high frequency power
lf_hf
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
5 minute window start time
start__sec_
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Mean of all normal sinus to normal sinus interbeat intervals (NN)
avnn
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
1 or more respiratory events in 5 minute window
hasrespevent
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Standard deviation of all normal sinus to normal sinus interbeat (NN) intervals
sdnn
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Mean of the standard deviations of normal sinus to normal sinus interbeat (NN) intervals in all 5-minute segments
sdnnidx
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Sleep stage of second 30 second epoch in 5 minute window
sleepstage02
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Sleep stage of third 30 second epoch in 5 minute window
sleepstage03
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Sleep stage of sixth 30 second epoch in 5 minute window
sleepstage06
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Sleep stage of seventh 30 second epoch in 5 minute window
sleepstage07
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Sleep stage of ninth 30 second epoch in 5 minute window
sleepstage09
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Sleep stage of tenth 30 second epoch in 5 minute window
sleepstage10
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
Mean of all normal sinus to normal sinus interbeat intervals (NN)
avnn
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
1 or more respiratory events in 5 minute window
hasrespevent
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Standard deviation of all normal sinus to normal sinus interbeat (NN) intervals
sdnn
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Mean of the standard deviations of normal sinus to normal sinus interbeat (NN) intervals in all 5-minute segments
sdnnidx
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Sleep stage of second 30 second epoch in 5 minute window
sleepstage02
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Sleep stage of third 30 second epoch in 5 minute window
sleepstage03
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Sleep stage of sixth 30 second epoch in 5 minute window
sleepstage06
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Sleep stage of seventh 30 second epoch in 5 minute window
sleepstage07
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Sleep stage of ninth 30 second epoch in 5 minute window
sleepstage09
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Sleep stage of tenth 30 second epoch in 5 minute window
sleepstage10
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
CHAT variables
Square root of the mean of the squares of difference between adjacent normal sinus to normal sinus interbeat (NN) intervals
rmssd
under Clinical Data/Diagnostic Studies/Heart Rate Variability in
SHHS variables
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