We've updated our privacy policy.

Multi-Ethnic Study of Atherosclerosis

Name Label Folder
avnn_fn5
Mean of all normal sinus to normal sinus interbeat intervals (NN)
Mean of all normal sinus to normal sinus interbeat intervals (NN) Heart Rate Variability/Full Night
hf_fn5
Total spectral power of all NN intervals between 0.15 and 0.4 Hz
Total spectral power of all NN intervals between 0.15 and 0.4 Hz Heart Rate Variability/Full Night
hfn_fn5
Normalized LF, ratio LF/(HF+LF)
Normalized LF, ratio LF/(HF+LF) Heart Rate Variability/Full Night
ihr_fn5
Average instantaneous heart rate. For a given NN interval, IHR=60/NN
Average instantaneous heart rate. For a given NN interval, IHR=60/NN Heart Rate Variability/Full Night
lf_fn5
Total spectral power of all NN intervals between 0.04 and 0.15 Hz
Total spectral power of all NN intervals between 0.04 and 0.15 Hz Heart Rate Variability/Full Night
lf_hf_fn5
Ratio of low to high frequency power
Ratio of low to high frequency power Heart Rate Variability/Full Night
lfn_fn5
Normalized HF, ratio HF/(HF+LF)
Normalized HF, ratio HF/(HF+LF) Heart Rate Variability/Full Night
nn_rr_fn5
Ratio of consecutive normal sinus beats (NN) over all cardiac inter-beat (RR) intervals
Ratio of consecutive normal sinus beats (NN) over all cardiac inter-beat (RR) intervals Heart Rate Variability/Full Night
pnn10_fn5
Percentage of differences between adjacent NN intervals that are greater than 10 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 10 ms; a member of the larger pNNx family Heart Rate Variability/Full Night
pnn20_fn5
Percentage of differences between adjacent NN intervals that are greater than 20 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 20 ms; a member of the larger pNNx family Heart Rate Variability/Full Night
pnn30_fn5
Percentage of differences between adjacent NN intervals that are greater than 30 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 30 ms; a member of the larger pNNx family Heart Rate Variability/Full Night
pnn40_fn5
Percentage of differences between adjacent NN intervals that are greater than 40 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 40 ms; a member of the larger pNNx family Heart Rate Variability/Full Night
pnn50_fn5
Percentage of differences between adjacent NN intervals that are greater than 50 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 50 ms; a member of the larger pNNx family Heart Rate Variability/Full Night
rmssd_fn5
Square root of the mean of the squares of differences between adjacent NN intervals
Square root of the mean of the squares of differences between adjacent NN intervals Heart Rate Variability/Full Night
sdann_fn5
Standard deviation of the averages of NN intervals in all 5-minute segments
Standard deviation of the averages of NN intervals in all 5-minute segments Heart Rate Variability/Full Night
sdnn_fn5
Standard deviation of all NN intervals
Standard deviation of all NN intervals Heart Rate Variability/Full Night
sdnnidx_fn5
Mean of the standard deviations of NN intervals in all 5-minute segments
Mean of the standard deviations of NN intervals in all 5-minute segments Heart Rate Variability/Full Night
totpwr_fn5
Total spectral power of all NN intervals up to 0.04 Hz
Total spectral power of all NN intervals up to 0.04 Hz Heart Rate Variability/Full Night
ulf_fn5
Total spectral power of all NN intervals up to 0.003 Hz
Total spectral power of all NN intervals up to 0.003 Hz Heart Rate Variability/Full Night
vlf_fn5
Total spectral power of all NN intervals between 0.003 and 0.04 Hz, and between 0 and 0.04 Hz in analyses of the entire night period and 5-minute windows, respectively
Total spectral power of all NN intervals between 0.003 and 0.04 Hz, and between 0 and 0.04 Hz in analyses of the entire night period and 5-minute windows, respectively Heart Rate Variability/Full Night
avnn_5m5
Mean of all normal sinus to normal sinus interbeat intervals (NN)
Mean of all normal sinus to normal sinus interbeat intervals (NN) Heart Rate Variability/Non-Overlapping Windows
hf_5m5
Total spectral power of all NN intervals between 0.15 and 0.4 Hz
Total spectral power of all NN intervals between 0.15 and 0.4 Hz Heart Rate Variability/Non-Overlapping Windows
hfn_5m5
Normalized LF, ratio LF/(HF+LF)
Normalized LF, ratio LF/(HF+LF) Heart Rate Variability/Non-Overlapping Windows
ihr_5m5
Average instantaneous heart rate. For a given NN interval, IHR=60/NN
Average instantaneous heart rate. For a given NN interval, IHR=60/NN Heart Rate Variability/Non-Overlapping Windows
lf_5m5
Total spectral power of all NN intervals between 0.04 and 0.15 Hz
Total spectral power of all NN intervals between 0.04 and 0.15 Hz Heart Rate Variability/Non-Overlapping Windows
lf_hf_5m5
Ratio of low to high frequency power
Ratio of low to high frequency power Heart Rate Variability/Non-Overlapping Windows
lfn_5m5
Normalized HF, ratio HF/(HF+LF)
Normalized HF, ratio HF/(HF+LF) Heart Rate Variability/Non-Overlapping Windows
nn_rr_5m5
Ratio of consecutive normal sinus beats (NN) over all cardiac inter-beat (RR) intervals
Ratio of consecutive normal sinus beats (NN) over all cardiac inter-beat (RR) intervals Heart Rate Variability/Non-Overlapping Windows
pnn10_5m5
Percentage of differences between adjacent NN intervals that are greater than 10 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 10 ms; a member of the larger pNNx family Heart Rate Variability/Non-Overlapping Windows
pnn20_5m5
Percentage of differences between adjacent NN intervals that are greater than 20 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 20 ms; a member of the larger pNNx family Heart Rate Variability/Non-Overlapping Windows
pnn30_5m5
Percentage of differences between adjacent NN intervals that are greater than 30 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 30 ms; a member of the larger pNNx family Heart Rate Variability/Non-Overlapping Windows
pnn40_5m5
Percentage of differences between adjacent NN intervals that are greater than 40 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 40 ms; a member of the larger pNNx family Heart Rate Variability/Non-Overlapping Windows
pnn50_5m5
Percentage of differences between adjacent NN intervals that are greater than 50 ms; a member of the larger pNNx family
Percentage of differences between adjacent NN intervals that are greater than 50 ms; a member of the larger pNNx family Heart Rate Variability/Non-Overlapping Windows
rmssd_5m5
Square root of the mean of the squares of differences between adjacent NN intervals
Square root of the mean of the squares of differences between adjacent NN intervals Heart Rate Variability/Non-Overlapping Windows
sdnn_5m5
Standard deviation of all NN intervals
Standard deviation of all NN intervals Heart Rate Variability/Non-Overlapping Windows
totpwr_5m5
Total spectral power of all NN intervals up to 0.04 Hz
Total spectral power of all NN intervals up to 0.04 Hz Heart Rate Variability/Non-Overlapping Windows
vlf_5m5
Total spectral power of all NN intervals between 0.003 and 0.04 Hz, and between 0 and 0.04 Hz in analyses of the entire night period and 5-minute windows, respectively
Total spectral power of all NN intervals between 0.003 and 0.04 Hz, and between 0 and 0.04 Hz in analyses of the entire night period and 5-minute windows, respectively Heart Rate Variability/Non-Overlapping Windows