We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.

Sleep Heart Health Study

Name Label Folder
fev1
Forced Expiratory Volume (FEV 1) (Sleep Heart Health Study Visit One (SHHS1))
Forced Expiratory Volume (FEV 1) (Sleep Heart Health Study Visit One (SHHS1))

in One Second

Clinical Data/Diagnostic Studies/Lung Function
fvc
Forced Vital Capacity (FVC) (Sleep Heart Health Study Visit One (SHHS1))
Forced Vital Capacity (FVC) (Sleep Heart Health Study Visit One (SHHS1)) Clinical Data/Diagnostic Studies/Lung Function
afib
Atrial Fibrillation or Flutter
Atrial Fibrillation or Flutter

Minnesota (MN) code 8-3-1 or 8-3-2. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
antlatmi
Anterolateral myocardial infarction (MI)
Anterolateral myocardial infarction (MI)

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
antsepmi
Anteroseptal myocardial infarction (MI)
Anteroseptal myocardial infarction (MI)

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
apbs
Atrial bypasses
Atrial bypasses

Minnesota (MN) code 8-1-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
av1deg
First degree atrioventricular block
First degree atrioventricular block

Minnesota (MN) code 6-3. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
av3deg
Third degree atrioventricular block
Third degree atrioventricular block

Minnesota (MN) code 6-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
ecgdate
Number of days since the baseline Polysomnography (PSG) until collected: electrocardiogram (ECG)
Number of days since the baseline Polysomnography (PSG) until collected: electrocardiogram (ECG)

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
ilbbb
Incomplete left bundle-branch block
Incomplete left bundle-branch block

Minnesota (MN) code 7-6. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
infmi
Inferior myocardial infarction (MI)
Inferior myocardial infarction (MI)

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
irbbb
Incomplete right bundle-branch block
Incomplete right bundle-branch block

Minnesota (MN) code 7-3. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
iventblk
Indeterminate intraventricular block pattern
Indeterminate intraventricular block pattern

Minnesota (MN) code 7-4. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
lah
Left Atrial Hypertrophy
Left Atrial Hypertrophy

Minnesota (MN) code 7-7. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
lbbb
Left bundle-branch block
Left bundle-branch block

Minnesota (MN) code 7-1-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
lvh3_1
Left Ventricular Hypertrophy: Voltage 3-1
Left Ventricular Hypertrophy: Voltage 3-1

Minnesota (MN) code 3-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
lvh3_3
Left Ventricular Hypertrophy: Voltage 3-3
Left Ventricular Hypertrophy: Voltage 3-3

Minnesota (MN) code 3-3. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
lvhst
Left Ventricular Hypertrophy with ST and T-wave abnormalities
Left Ventricular Hypertrophy with ST and T-wave abnormalities

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
mob1
Mobitz Type-1 Heart Block
Mobitz Type-1 Heart Block

Second degree atrioventricular (Mobitz) type-1 heart block. Minnesota (MN) code 6-2-3. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
mob2
Mobitz Type-2 Heart Block
Mobitz Type-2 Heart Block

Second degree atrioventricular (Mobitz) type-2 heart block. Minnesota (MN) code 6-2-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
nodal
Nodal rhythm
Nodal rhythm

Abnormal heart rhythm resulting from impulses from the atrioventricular node. Minnesota (MN) code 8-4-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
nonsp_st
Nonspecific ST wave abnormalty
Nonspecific ST wave abnormalty

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
nonsp_tw
Nonspecific T wave abnormalty
Nonspecific T wave abnormalty

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
paced
Paced rate
Paced rate

Minnesota (MN) code 6-8. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
part2deg
Partial second degree atrioventricular block
Partial second degree atrioventricular block

Minnesota (MN) code 6-2-2. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
qrs
QRS Axis
QRS Axis

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
rbbb
Right bundle-branch block
Right bundle-branch block

Minnesota (MN) code 7-2-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
rtrial
Right Atrial Enlargement
Right Atrial Enlargement

Minnesota (MN) code 9-3. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
rvh
Right Ventricular Hypertrophy
Right Ventricular Hypertrophy

Minnesota (MN) code 3-2. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
st4_1_3
ST and T-wave 4-1 to 4-3
ST and T-wave 4-1 to 4-3

Minnesota (MN) code 4-1 to 4-3. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
st5_1_3
ST and T-wave 5-1 to 5-3
ST and T-wave 5-1 to 5-3

Minnesota (MN) code 5-1 to 5-3. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
truposmi
True posterior myocardial infarction (MI)
True posterior myocardial infarction (MI)

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
ventrate
Ventricular rate
Ventricular rate

Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
vpbs
Ventricular bypasses
Ventricular bypasses

Minnesota (MN) code 8-1-2. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
wpw
Wolff-Parkinson-White Syndrome
Wolff-Parkinson-White Syndrome

Minnesota (MN) code 6-4-1. Data derived from standard resting 12-lead electrocardiogram (ECG) with the participant supine. Records were interpreted and Minnesota (MN) codes were provided by clinical cardiologists.

Clinical Data/Diagnostic Studies/Electrocardiogram
avnn
Mean of all normal sinus to normal sinus interbeat intervals (NN)
Mean of all normal sinus to normal sinus interbeat intervals (NN) Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
hf
High frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.15 and 0.4 Hz
High frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.15 and 0.4 Hz Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
hf_n
High frequency power (normalized)
High frequency power (normalized) Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
ihr
Instantaneous heart rate
Instantaneous heart rate Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
lf
Low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.04 and 0.15 Hz
Low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.04 and 0.15 Hz Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
lf_hf
The ratio of low to high frequency power
The ratio of low to high frequency power Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
lf_n
Low frequency power (normalized)
Low frequency power (normalized) Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
nn_rr
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 Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
pnn10
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >10 ms
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >10 ms Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
pnn20
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >20 ms
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >20 ms Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
pnn30
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >30 ms
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >30 ms Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
pnn40
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >40 ms
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >40 ms Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
pnn50
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >50 ms
Percentage of differences between adjacent normal sinus to normal sinus interbeat (NN) intervals that are >50 ms Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
rmssd
Square root of the mean of the squares of difference between adjacent normal sinus to normal sinus interbeat (NN) intervals
Square root of the mean of the squares of difference between adjacent normal sinus to normal sinus interbeat (NN) intervals Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
sdann
Standard deviation of the averages of normal sinus to normal sinus interbeat (NN) intervals in all 5-minute segments
Standard deviation of the averages of normal sinus to normal sinus interbeat (NN) intervals in all 5-minute segments Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
sdnn
Standard deviation of all normal sinus to normal sinus interbeat (NN) intervals
Standard deviation of all normal sinus to normal sinus interbeat (NN) intervals Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
sdnnidx
Mean of the standard deviations of normal sinus to normal sinus interbeat (NN) intervals in all 5-minute segments
Mean of the standard deviations of normal sinus to normal sinus interbeat (NN) intervals in all 5-minute segments Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
tot_pwr
Total normal sinus to normal sinus interbeat (NN) interval spectral power up to 0.4 Hz
Total normal sinus to normal sinus interbeat (NN) interval spectral power up to 0.4 Hz Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
ulf
Ultra-low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0 and 0.003 Hz
Ultra-low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0 and 0.003 Hz Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)
vlf
Very low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.003 and 0.04 Hz
Very low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.003 and 0.04 Hz Clinical Data/Diagnostic Studies/Heart Rate Variability (HRV)