Name | Label | Folder | |
---|---|---|---|
icc_ms_rows
Breakdown of ICC components - MS Rows
|
Breakdown of ICC components - MS Rows
Component of intraclass correlation, see icc_rl_orp for more information. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_normalized_eeg_power
Average Normalized EEG Power
|
Average Normalized EEG Power
In some PSGs the EEG is generally low in amplitude in all frequency ranges while in others it is high. The reasons for these differences could be technical (distance between active and reference electrode, electrode impedance), biological (e.g. age, skin or skull impedance) or some other reason Younes et al. 2021 (PubMed ID: 34156473). |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_org_trt
Average ORP Over Total Recording Time
|
Average ORP Over Total Recording Time
Average Odds Ratio Product (ORP) in all 30-s epochs during total recording time. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_orp_last120m_nrem
Avg ORP Last 120 min NREM
|
Avg ORP Last 120 min NREM
Used (along with min_orp_firsthalf_nrem) to calculate diff_orp. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_orp_n1
Average ORP During N1
|
Average ORP During N1
Average Odds Ratio Product (ORP) in all 30-s epochs during manually scored sleep stages. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_orp_n2
Average ORP During N2
|
Average ORP During N2
Average Odds Ratio Product (ORP) in all 30-s epochs during manually scored sleep stages. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_orp_n3
Average ORP During N3
|
Average ORP During N3
Average Odds Ratio Product (ORP) in all 30-s epochs during manually scored sleep stages. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_orp_nonrem
Average ORP During non-REM
|
Average ORP During non-REM
Average Odds Ratio Product (ORP) in all 30-s epochs during manually scored sleep stages. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_orp_rem
Average ORP During REM
|
Average ORP During REM
Average Odds Ratio Product (ORP) in all 30-s epochs during manually scored sleep stages. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
avg_orp_wake
Average ORP During Wake
|
Average ORP During Wake
Average Odds Ratio Product (ORP) in all 30-s epochs during manually scored sleep stages. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
baseline_hr
Arousal Characteristics - Baseline HR
|
Arousal Characteristics - Baseline HR
Heart rate in repsonse to arousals. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
change_in_hr_perh_trt
Arousal Characteristics - Change in HR per hr of TRT
|
Arousal Characteristics - Change in HR per hr of TRT
Heart rate in repsonse to arousals. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
clinical_category
Clinical Category
|
Clinical Category
Clinical Category as per Younes et al. 2021 (PubMed ID: 34156473) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
delta_hr
Arousal Characteristics - Delta HR
|
Arousal Characteristics - Delta HR
Heart rate in repsonse to arousals. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
dhr_intensity
Arousal Characteristics - dHR/ Intensity
|
Arousal Characteristics - dHR/ Intensity
Heart rate in repsonse to arousals. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
diff_orp
Change in ORP across the night
|
Change in ORP across the night
Change in Odds Ratio Product (ORP) across the night, a greater increase in ORP from the beginning of to end of the night suggests more restorative sleep. Younes et al. 2020 (PubMed ID: 32729619). |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
icc_ms_cols
Breakdown of ICC components - MS Columns
|
Breakdown of ICC components - MS Columns
Component of intraclass correlation, see icc_rl_orp for more information. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
icc_ms_error
Breakdown of ICC components - MS Error
|
Breakdown of ICC components - MS Error
Component of intraclass correlation, see icc_rl_orp for more information. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
alpha_intrusion_pct_3sepochs
Alpha intrusion (% of 3-s epochs)
|
Alpha intrusion (% of 3-s epochs)
Percent of 3-sec epochs with alpha power >30mV2 |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
icc_rl_orp
Icc R/L Orp
|
Icc R/L Orp
Intraclass correlation between right and left Odds Ratio Product (ORP) across all epochs in Total Recording Time (TRT). A high correlation indicates good agreement in sleep depth between right and left hemispheres. The reasons for a low correlation could be: |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
intensity_scale
Arousal Characteristics - Intensity Scale
|
Arousal Characteristics - Intensity Scale
Arousal intensity on a scale from 1 to 9 (Younes 2017). |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
min_orp_firsthalf_nrem
Min ORP First Half NREM
|
Min ORP First Half NREM
Used (along with avg_orp_last120m_nrem) to calculate diff_orp. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
orp_type
ORP Type
|
ORP Type
Nine Odds Ratio Product (ORP) types with different potential mechanisms and associations with demographics, clinical phenotypes and outcomes. Source: sum_deciles_1and2 Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
orpto9
Orp-9
|
Orp-9
Rate of sleep recovery following arousals. A high value reflects slow recovery and suggests high central arousability (Hyperarousal state). |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_0_25to0_5pct
Distribution of epochs in 0.25-0.5% ORP decile
|
Distribution of epochs in 0.25-0.5% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_0_5to0_75pct
Distribution of epochs in 0.5-0.75% ORP decile
|
Distribution of epochs in 0.5-0.75% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_0_75to1pct
Distribution of epochs in 0.75-1.0% ORP decile
|
Distribution of epochs in 0.75-1.0% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_0to_0_25pct
Distribution of epochs in 0-0.25% ORP decile
|
Distribution of epochs in 0-0.25% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_1_25to1_5pct
Distribution of epochs in 1.25-1.5% ORP decile
|
Distribution of epochs in 1.25-1.5% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_1_5to1_75pct
Distribution of epochs in 1.5-1.75% ORP decile
|
Distribution of epochs in 1.5-1.75% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_1_75to2pct
Distribution of epochs in 1.75-2.0% ORP decile
|
Distribution of epochs in 1.75-2.0% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_1to1_25pct
Distribution of epochs in 1.0-1.25% ORP decile
|
Distribution of epochs in 1.0-1.25% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_2_25to2_5pct
Distribution of epochs in 2.25-2.5% ORP decile
|
Distribution of epochs in 2.25-2.5% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
pct_epoch_2to2_25pct
Distribution of epochs in 2.0-2.25% ORP decile
|
Distribution of epochs in 2.0-2.25% ORP decile
Distribution of 30-s epochs, as a percent of total recording time in different Odds Ratio Product (ORP) deciles. Younes et al. 2022 (PubMed ID: 35272350) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c3a2_alpha
Powers C3/A2 (mV^2) - Alpha (7.33-12.0)
|
Powers C3/A2 (mV^2) - Alpha (7.33-12.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c3a2_beta1
Powers C3/A2 (mV^2) - Beta1 (14.3-20.0)
|
Powers C3/A2 (mV^2) - Beta1 (14.3-20.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c3a2_beta2
Powers C3/A2 (mV^2) - Beta2 (20.3-35)
|
Powers C3/A2 (mV^2) - Beta2 (20.3-35)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c3a2_delta
Powers C3/A2 (mV^2) - Delta (0.33-2.33 Hz)
|
Powers C3/A2 (mV^2) - Delta (0.33-2.33 Hz)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c3a2_gammaomega
Powers C3/A2 (mV^2) - Gamma Omega (35.3-60.0)
|
Powers C3/A2 (mV^2) - Gamma Omega (35.3-60.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c3a2_sigma
Powers C3/A2 (mV^2) - Sigma (12.33-14.0)
|
Powers C3/A2 (mV^2) - Sigma (12.33-14.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c3a2_theta1
Powers C3/A2 (mV^2) - Theta1 (2.67-6.33)
|
Powers C3/A2 (mV^2) - Theta1 (2.67-6.33)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c4a1_alpha
Powers C4/A1 (æV^2) - Alpha (7.33-12.0)
|
Powers C4/A1 (æV^2) - Alpha (7.33-12.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c4a1_beta1
Powers C4/A1 (æV^2) - Beta1 (14.3-20.0)
|
Powers C4/A1 (æV^2) - Beta1 (14.3-20.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c4a1_beta2
Powers C4/A1 (æV^2) - Beta2 (20.3-35.0)
|
Powers C4/A1 (æV^2) - Beta2 (20.3-35.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c4a1_delta
Powers C4/A1 (æV^2) - Delta (0.33-2.33 Hz)
|
Powers C4/A1 (æV^2) - Delta (0.33-2.33 Hz)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c4a1_gammaomega
Powers C4/A1 (æV^2) - Gamma Omega (35.3-60.0)
|
Powers C4/A1 (æV^2) - Gamma Omega (35.3-60.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c4a1_sigma
Powers C4/A1 (æV^2) - Sigma (12.33-14.0)
|
Powers C4/A1 (æV^2) - Sigma (12.33-14.0)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
powers_c4a1_theta1
Powers C4/A1 (æV^2) - Theta1 (2.67-6.33)
|
Powers C4/A1 (æV^2) - Theta1 (2.67-6.33)
Average power in all 3-s epochs in the indicated frequency range after excluding the highest 10% of values, which generally represent noise. |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_density_c3
Spindle Characteristics (Stage N2) - Density (C3)
|
Spindle Characteristics (Stage N2) - Density (C3)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_density_c4
Spindle Characteristics (Stage N2) - Density (C4)
|
Spindle Characteristics (Stage N2) - Density (C4)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_freq_c3
Spindle Characteristics (Stage N2) - Frequency (C3)
|
Spindle Characteristics (Stage N2) - Frequency (C3)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_freq_c4
Spindle Characteristics (Stage N2) - Frequency (C4)
|
Spindle Characteristics (Stage N2) - Frequency (C4)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_pctfast_c3
Spindle Characteristics (Stage N2) - % Fast (C3)
|
Spindle Characteristics (Stage N2) - % Fast (C3)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_pctfast_c4
Spindle Characteristics (Stage N2) - % Fast (C4)
|
Spindle Characteristics (Stage N2) - % Fast (C4)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_power_c3
Spindle Characteristics (Stage N2) - Power (C3)
|
Spindle Characteristics (Stage N2) - Power (C3)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
spindle_char_n2_power_c4
Spindle Characteristics (Stage N2) - Power (C4)
|
Spindle Characteristics (Stage N2) - Power (C4)
Spindle characteristics in stage N2. For detection methods and validation see Method A10: Goldschmied et al. 2021 (PubMed ID: 33165618), and Guadagni et al. 2021 (PubMed ID:32281182) |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
sum_deciles_1and2
Sum Deciles 1 & 2
|
Sum Deciles 1 & 2
Used to determine Odds Ratio Product type, see orp_type |
Sleep Monitoring/Polysomnography/Electroencephalogram | |
valid_delta_and_intensity_count
Arousal Characteristics - Valid Delta & Intensity Count
|
Arousal Characteristics - Valid Delta & Intensity Count | Sleep Monitoring/Polysomnography/Electroencephalogram | |
valid_intensity_count
Arousal Characteristics - Valid Intensity Count
|
Arousal Characteristics - Valid Intensity Count | Sleep Monitoring/Polysomnography/Electroencephalogram | |
restan4
Polysomnography (PSG) Scoring Notes (Sleep Heart Health Study Visit One (SHHS1)): Intervening period bad EEG
|
Polysomnography (PSG) Scoring Notes (Sleep Heart Health Study Visit One (SHHS1)): Intervening period bad EEG
"1: Yes", this indicates more than 30 minutes of the sleep period had either lost or unscorable EEG data |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
aroign
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Arousals Ignored
|
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Arousals Ignored
Due to problems with EEG signals, arousals were ignored in scoring. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 | |
queeg1
Quality of the EEG1 signal
|
Quality of the EEG1 signal
Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. EEG/EOG/EMG data are defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 | |
queeg2
Quality of the EEG2 signal
|
Quality of the EEG2 signal
Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. EEG/EOG/EMG data are defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 | |
eeg1qual
Quality of the EEG1 signal
|
Quality of the EEG1 signal
Sleep Heart Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable data for EEG/EOG/EMG data is defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
eeg2qual
Quality of the EEG2 signal
|
Quality of the EEG2 signal
Sleep Heart Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable data for EEG/EOG/EMG data is defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
staging5
Polysomnography (PSG) Scoring Notes (Sleep Heart Health Study Visit One (SHHS1)): Scored Sleep-Wake only
|
Polysomnography (PSG) Scoring Notes (Sleep Heart Health Study Visit One (SHHS1)): Scored Sleep-Wake only
When the technical quality of the EEG does not allow distinction between sleep stages, but allows a differentiation between sleep and wake. The time considered sleep will be marked as Stage 2. No arousals will be scored for these studies. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
queogr
Quality of the EOGR signal
|
Quality of the EOGR signal
Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. EEG/EOG/EMG data are defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 | |
queogl
Quality of the EOGL signal
|
Quality of the EOGL signal
Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. EEG/EOG/EMG data are defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 | |
quchin
Quality of the chin signal
|
Quality of the chin signal
Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. EEG/EOG/EMG data are defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 | |
chinqual
Quality of the chin signal
|
Quality of the chin signal
Sleep Heart Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable data for EEG/EOG/EMG data is defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
eogrqual
Quality of the EOGR signal
|
Quality of the EOGR signal
Sleep Heart Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable data for EEG/EOG/EMG data is defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
eoglqual
Quality of the EOGL signal
|
Quality of the EOGL signal
Sleep Heart Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable data for EEG/EOG/EMG data is defined by the number of hours that sleep stages can be distinguished from awake. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
overall_shhs1
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit One (SHHS1)): Overall signal quality
|
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit One (SHHS1)): Overall signal quality
Overall study grade as assigned by scorer. The overall quality grade is based on the quality and duration of EEG, respiratory and oximetry signals. Based on signal quality during recording time. Studies are given a study code varying from outstanding to fair. If interested in studies of the best quality, overall quality scores of Very Good, Excellent and Oustanding can be selected. This code reflects the total duration of useable (artifact free, scorable) signals across channels, weighing those signals most critical for accurate scoring of respiratory events and staging. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 | |
slewake
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Sleep Wake Scoring
|
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Sleep Wake Scoring
Study was scored sleep/wake rather than with full sleep staging. This assessment is made by the scorer if there is not sufficient quality on EEG leads to do full R&K scoring. (0=no (full scoring); 1=yes (sleep/wake only)) Studies scored as sleep wake have all sleep stages scored using a default of Stage 2 and no arousals are scored. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 |