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.

Multi-Ethnic Study of Atherosclerosis

Name Label Folder
avgefficiency5
Average daily sleep efficiency in all days from actigraphy
Average daily sleep efficiency in all days from actigraphy

Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.

Sleep Monitoring/Actigraphy
avgmainsleep5
Average daily total sleep duration in main sleep in all days from actigraphy
Average daily total sleep duration in main sleep in all days from actigraphy

Conventionally this variable would be called total sleep time (TST)

Sleep Monitoring/Actigraphy
avgsleepmidpoint5
Average daily midpoint for sleep period in all days from actigraphy
Average daily midpoint for sleep period in all days from actigraphy

Sleep period is the interval between sleep onset time and sleep offset time in main sleep.

Sleep Monitoring/Actigraphy
avgwaso5
Average daily duration of wake after sleep onset (waso) in all days from actigraphy
Average daily duration of wake after sleep onset (waso) in all days from actigraphy

WASO is the duration of being awake between sleep onset and offset time in main sleep.

Sleep Monitoring/Actigraphy
ahi_a0h3
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_a0h3a
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events. The definition for hypopneas is consistent with the following clinical guidelines: (1) American Academy of Sleep Medicine (AASM) 2007 Manual (2012 update) (recommended). Berry RB et al. 2012 (PubMed ID:23066376), and (2) American Academy of Sleep Medicine (AASM) 2015 (recommended) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.]

Search for all AHI variables consistent with the same clinical guidelines within this dataset

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_a0h4
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (alternative) Berry RB et al. 2012 (PubMed ID:23066376), and (2) AASM 2015 (acceptable) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.].

Search for all AHI variables consistent with the same clinical guidelines within this dataset

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_a0h4a
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h3
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h3a
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h4
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h4a
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h3
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h3a
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h4
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h4a
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi35
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ai_all5
Arousal Index: Number of arousals per hour of sleep from type II polysomnography
Arousal Index: Number of arousals per hour of sleep from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Arousal
avgplm5
Number of periodic limb movements per hour of sleep from type II polysomnography
Number of periodic limb movements per hour of sleep from type II polysomnography Sleep Monitoring/Polysomnography/Limb Movements
pctlt905
Percent total sleep duration with below 90% oxygen saturation from type II polysomnography
Percent total sleep duration with below 90% oxygen saturation from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Oxygen Saturation
cent_obs_ratio
Ratio of the number of central apneas with no oxygen desaturation threshold used and with or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type II polysomnography
Ratio of the number of central apneas with no oxygen desaturation threshold used and with or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Respiratory Event Counts
cent_obs_ratioa
Ratio of the number of central apneas with no oxygen desaturation threshold used or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography
Ratio of the number of central apneas with no oxygen desaturation threshold used or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Respiratory Event Counts
overall5
Overall Study Quality Grade from type II polysomnography
Overall Study Quality Grade from type II polysomnography Sleep Monitoring/Polysomnography/Signal Quality
slewake5
Study Scored Sleep / Wake Only (All Sleep Scored As N2 And No Arousals Scored Due To Poor Quality EEG) from type II polysomnography
Study Scored Sleep / Wake Only (All Sleep Scored As N2 And No Arousals Scored Due To Poor Quality EEG) from type II polysomnography Sleep Monitoring/Polysomnography/Signal Quality
time_bed5
Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography

Calculated. Conventionally this variable would be called time in bed (TIB).

Sleep Monitoring/Polysomnography/Sleep Architecture
timeremp5
Percentage of total sleep duration in REM from type II polysomnography
Percentage of total sleep duration in REM from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
times34p5
Percentage of total sleep duration in Stage 3 and 4 from type II polysomnography
Percentage of total sleep duration in Stage 3 and 4 from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
timest1p5
Percentage of total sleep duration in Stage 1 from type II polysomnography
Percentage of total sleep duration in Stage 1 from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
timest2p5
Percentage of total sleep duration in Stage 2 from type II polysomnography
Percentage of total sleep duration in Stage 2 from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
waso5
Wake after Sleep Onset: the total duration between sleep onset and sleep offset time while being awake from type II polysomnography
Wake after Sleep Onset: the total duration between sleep onset and sleep offset time while being awake from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
avg24hrsleep5
Average daily total sleep duration in main sleep and naps combined in all days from actigraphy
Average daily total sleep duration in main sleep and naps combined in all days from actigraphy Sleep Monitoring/Actigraphy
avg24hrsleepnw5
Average daily total sleep duration in main sleep and naps combined in non-workdays from actigraphy
Average daily total sleep duration in main sleep and naps combined in non-workdays from actigraphy Sleep Monitoring/Actigraphy
avg24hrsleepwd5
Average daily total sleep duration in main sleep and naps combined in weekdays from actigraphy
Average daily total sleep duration in main sleep and naps combined in weekdays from actigraphy Sleep Monitoring/Actigraphy
avg24hrsleepwe5
Average daily total sleep duration in main sleep and naps combined in weekends from actigraphy
Average daily total sleep duration in main sleep and naps combined in weekends from actigraphy Sleep Monitoring/Actigraphy
avg24hrsleepwo5
Average daily total sleep duration in main sleep and naps combined in workdays from actigraphy
Average daily total sleep duration in main sleep and naps combined in workdays from actigraphy Sleep Monitoring/Actigraphy
avgbluetalt5
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy Sleep Monitoring/Actigraphy
avgbluetaltnw5
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in non-workdays from actigraphy
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in non-workdays from actigraphy Sleep Monitoring/Actigraphy
avgbluetaltwd5
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy Sleep Monitoring/Actigraphy
avgbluetaltwe5
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekends from actigraphy
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekends from actigraphy Sleep Monitoring/Actigraphy
avgbluetaltwo5
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy Sleep Monitoring/Actigraphy
avgefficiencynw5
Average daily sleep efficiency in non-workdays from actigraphy
Average daily sleep efficiency in non-workdays from actigraphy

Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.

Sleep Monitoring/Actigraphy
avgefficiencywd5
Average daily sleep efficiency in weekdays from actigraphy
Average daily sleep efficiency in weekdays from actigraphy

Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.

Sleep Monitoring/Actigraphy
avgefficiencywe5
Average daily sleep efficiency in weekends from actigraphy
Average daily sleep efficiency in weekends from actigraphy

Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.

Sleep Monitoring/Actigraphy
avgefficiencywo5
Average daily sleep efficiency in workdays from actigraphy
Average daily sleep efficiency in workdays from actigraphy

Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.

Sleep Monitoring/Actigraphy
avgfragmentation5
Average daily total sleep fragmentation index in main sleep in all days from actigraphy
Average daily total sleep fragmentation index in main sleep in all days from actigraphy

Sleep Fragmentation is an index of restlessness during the sleep period expressed as a percentage. Kristen L et al. 2011 (PubMed ID:21411507)

There are three type of measures for sleep fragmentation: movement Index (MI), fragmentation index (FI), and total sleep fragmentation Index. The fragmentation index refers to the percentage of 60?s periods of sleep out of the total number of periods of immobility. The movement index refers to the total of scored awake minutes divided by sleep period (i.e. total time in bed). The total sleep fragmentation index is the sum of FI and MI. (ActiGraph validation reference)[https://actigraphcorp.force.com/support/s/article/Sleep-Fragmentation-Index-Validation-Reference]

Sleep Monitoring/Actigraphy
avgfragmentationnw5
Average daily total sleep fragmentation index in main sleep in non-workdays from actigraphy
Average daily total sleep fragmentation index in main sleep in non-workdays from actigraphy

Sleep Fragmentation is an index of restlessness during the sleep period expressed as a percentage. Kristen L et al. 2011 (PubMed ID:21411507)

There are three type of measures for sleep fragmentation: movement Index (MI), fragmentation index (FI), and total sleep fragmentation Index. The fragmentation index refers to the percentage of 60?s periods of sleep out of the total number of periods of immobility. The movement index refers to the total of scored awake minutes divided by sleep period (i.e. total time in bed). The total sleep fragmentation index is the sum of FI and MI. (ActiGraph validation reference)[https://actigraphcorp.force.com/support/s/article/Sleep-Fragmentation-Index-Validation-Reference]

Sleep Monitoring/Actigraphy
avgfragmentationwd5
Average daily total sleep fragmentation index in main sleep in weekdays from actigraphy
Average daily total sleep fragmentation index in main sleep in weekdays from actigraphy

Sleep Fragmentation is an index of restlessness during the sleep period expressed as a percentage. Kristen L et al. 2011 (PubMed ID:21411507)

There are three type of measures for sleep fragmentation: movement Index (MI), fragmentation index (FI), and total sleep fragmentation Index. The fragmentation index refers to the percentage of 60?s periods of sleep out of the total number of periods of immobility. The movement index refers to the total of scored awake minutes divided by sleep period (i.e. total time in bed). The total sleep fragmentation index is the sum of FI and MI. (ActiGraph validation reference)[https://actigraphcorp.force.com/support/s/article/Sleep-Fragmentation-Index-Validation-Reference]

Sleep Monitoring/Actigraphy
avgfragmentationwe5
Average daily total sleep fragmentation index in main sleep in weekends from actigraphy
Average daily total sleep fragmentation index in main sleep in weekends from actigraphy

Sleep Fragmentation is an index of restlessness during the sleep period expressed as a percentage. Kristen L et al. 2011 (PubMed ID:21411507)

There are three type of measures for sleep fragmentation: movement Index (MI), fragmentation index (FI), and total sleep fragmentation Index. The fragmentation index refers to the percentage of 60?s periods of sleep out of the total number of periods of immobility. The movement index refers to the total of scored awake minutes divided by sleep period (i.e. total time in bed). The total sleep fragmentation index is the sum of FI and MI. (ActiGraph validation reference)[https://actigraphcorp.force.com/support/s/article/Sleep-Fragmentation-Index-Validation-Reference]

Sleep Monitoring/Actigraphy
avgfragmentationwo5
Average daily total sleep fragmentation index in main sleep in workdays from actigraphy
Average daily total sleep fragmentation index in main sleep in workdays from actigraphy

Sleep Fragmentation is an index of restlessness during the sleep period expressed as a percentage. Kristen L et al. 2011 (PubMed ID:21411507)

There are three type of measures for sleep fragmentation: movement Index (MI), fragmentation index (FI), and total sleep fragmentation Index. The fragmentation index refers to the percentage of 60?s periods of sleep out of the total number of periods of immobility. The movement index refers to the total of scored awake minutes divided by sleep period (i.e. total time in bed). The total sleep fragmentation index is the sum of FI and MI. (ActiGraph validation reference)[https://actigraphcorp.force.com/support/s/article/Sleep-Fragmentation-Index-Validation-Reference]

Sleep Monitoring/Actigraphy
avggreentalt5
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy Sleep Monitoring/Actigraphy
avggreentaltnw5
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods non-workdays from actigraphy
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods non-workdays from actigraphy Sleep Monitoring/Actigraphy
avggreentaltwd5
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy Sleep Monitoring/Actigraphy
avggreentaltwe5
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekends from actigraphy
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekends from actigraphy Sleep Monitoring/Actigraphy
avggreentaltwo5
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy
Average green light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy Sleep Monitoring/Actigraphy
avginbedduration5
Average daily duration of rest period in all days from actigraphy
Average daily duration of rest period in all days from actigraphy

In this study, rest period (i.e. rest internal) is defined as in-bed period (i.e. time in bed, TIB) in main sleep.

Sleep Monitoring/Actigraphy
avginbeddurationnw5
Average daily duration of rest period in non-workdays from actigraphy
Average daily duration of rest period in non-workdays from actigraphy

In this study, rest period (i.e. rest internal) is defined as in-bed period (i.e. time in bed, TIB) in main sleep.

Sleep Monitoring/Actigraphy
avginbeddurationwd5
Average daily duration of rest period in weekdays from actigraphy
Average daily duration of rest period in weekdays from actigraphy

In this study, rest period (i.e. rest internal) is defined as in-bed period (i.e. time in bed, TIB) in main sleep.

Sleep Monitoring/Actigraphy
avginbeddurationwe5
Average daily duration of rest period in weekends from actigraphy
Average daily duration of rest period in weekends from actigraphy

In this study, rest period (i.e. rest internal) is defined as in-bed period (i.e. time in bed, TIB) in main sleep.

Sleep Monitoring/Actigraphy
avginbeddurationwo5
Average daily duration of rest period in workdays from actigraphy
Average daily duration of rest period in workdays from actigraphy

In this study, rest period (i.e. rest internal) is defined as in-bed period (i.e. time in bed, TIB) in main sleep.

Sleep Monitoring/Actigraphy
avginbedtime5
Average daily start time for rest period in all days from actigraphy
Average daily start time for rest period in all days from actigraphy

In this study, rest period (i.e. rest interval) is defined as in-bed period (i.e. time in bed, TIB), therefore the start time of rest period is in-bed time.

Sleep Monitoring/Actigraphy
avginbedtimenw5
Average daily start time for rest period in non-workdays from actigraphy
Average daily start time for rest period in non-workdays from actigraphy

In this study, rest period (i.e. rest interval) is defined as in-bed period (i.e. time in bed, TIB), therefore the start time of rest period is in-bed time.

Sleep Monitoring/Actigraphy
avginbedtimewd5
Average daily start time for rest period in weekdays from actigraphy
Average daily start time for rest period in weekdays from actigraphy

In this study, rest period (i.e. rest interval) is defined as in-bed period (i.e. time in bed, TIB), therefore the start time of rest period is in-bed time.

Sleep Monitoring/Actigraphy
avginbedtimewe5
Average daily start time for rest period in weekends from actigraphy
Average daily start time for rest period in weekends from actigraphy

In this study, rest period (i.e. rest interval) is defined as in-bed period (i.e. time in bed, TIB), therefore the start time of rest period is in-bed time.

Sleep Monitoring/Actigraphy
avginbedtimewo5
Average daily start time for rest period in workdays from actigraphy
Average daily start time for rest period in workdays from actigraphy

In this study, rest period (i.e. rest interval) is defined as in-bed period (i.e. time in bed, TIB), therefore the start time of rest period is in-bed time.

Sleep Monitoring/Actigraphy
avginbedwake5
Average daily duration of wake in bed in all days from actigraphy
Average daily duration of wake in bed in all days from actigraphy

Duration of wake in bed is the sum of sleep latency, wake after sleep onset (WASO) and wake after sleep offset in main sleep. Conventionally, this variable would be called "total wake time" (TWT).

Sleep Monitoring/Actigraphy
avginbedwakenw5
Average daily duration of wake in bed in non-workdays from actigraphy
Average daily duration of wake in bed in non-workdays from actigraphy

Duration of wake in bed is the sum of sleep latency, wake after sleep onset (WASO) and wake after sleep offset in main sleep. Conventionally, this variable would be called "total wake time" (TWT).

Sleep Monitoring/Actigraphy
avginbedwakewd5
Average daily duration of wake in bed in weekdays from actigraphy
Average daily duration of wake in bed in weekdays from actigraphy

Duration of wake in bed is the sum of sleep latency, wake after sleep onset (WASO) and wake after sleep offset in main sleep. Conventionally, this variable would be called "total wake time" (TWT).

Sleep Monitoring/Actigraphy
avginbedwakewe5
Average daily duration of wake in bed in weekends from actigraphy
Average daily duration of wake in bed in weekends from actigraphy

Duration of wake in bed is the sum of sleep latency, wake after sleep onset (WASO) and wake after sleep offset in main sleep. Conventionally, this variable would be called "total wake time" (TWT).

Sleep Monitoring/Actigraphy
avginbedwakewo5
Average daily duration of wake in bed in workdays from actigraphy
Average daily duration of wake in bed in workdays from actigraphy

Duration of wake in bed is the sum of sleep latency, wake after sleep onset (WASO) and wake after sleep offset in main sleep. Conventionally, this variable would be called "total wake time" (TWT).

Sleep Monitoring/Actigraphy
avgmainsleepnw5
Average daily total sleep duration in main sleep in non-workdays from actigraphy
Average daily total sleep duration in main sleep in non-workdays from actigraphy

Conventionally this variable would be called total sleep time (TST)

Sleep Monitoring/Actigraphy
avgmainsleepwd5
Average daily total sleep duration in main sleep in weekdays from actigraphy
Average daily total sleep duration in main sleep in weekdays from actigraphy

Conventionally this variable would be called total sleep time (TST)

Sleep Monitoring/Actigraphy
avgmainsleepwe5
Average daily total sleep duration in main sleep in weekends from actigraphy
Average daily total sleep duration in main sleep in weekends from actigraphy

Conventionally this variable would be called total sleep time (TST)

Sleep Monitoring/Actigraphy
avgmainsleepwo5
Average daily total sleep duration in main sleep in workdays from actigraphy
Average daily total sleep duration in main sleep in workdays from actigraphy

Conventionally this variable would be called total sleep time (TST)

Sleep Monitoring/Actigraphy
avgmainteff5
Average daily sleep maintenance efficiency in all days from actigraphy
Average daily sleep maintenance efficiency in all days from actigraphy

Sleep maintenance efficiency is the ratio between sleep duration (i.e. total sleep time, tst) and sleep period in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep, while sleep period is the interval between sleep onset time and sleep offset time.

Sleep Monitoring/Actigraphy
avgmainteffnw5
Average daily sleep maintenance efficiency in non-workdays from actigraphy
Average daily sleep maintenance efficiency in non-workdays from actigraphy

Sleep maintenance efficiency is the ratio between sleep duration (i.e. total sleep time, tst) and sleep period in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep, while sleep period is the interval between sleep onset time and sleep offset time.

Sleep Monitoring/Actigraphy
avgmainteffwd5
Average daily sleep maintenance efficiency in weekdays from actigraphy
Average daily sleep maintenance efficiency in weekdays from actigraphy

Sleep maintenance efficiency is the ratio between sleep duration (i.e. total sleep time, tst) and sleep period in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep, while sleep period is the interval between sleep onset time and sleep offset time.

Sleep Monitoring/Actigraphy
avgmainteffwe5
Average daily sleep maintenance efficiency in weekends from actigraphy
Average daily sleep maintenance efficiency in weekends from actigraphy

Sleep maintenance efficiency is the ratio between sleep duration (i.e. total sleep time, tst) and sleep period in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep, while sleep period is the interval between sleep onset time and sleep offset time.

Sleep Monitoring/Actigraphy
avgmainteffwo5
Average daily sleep maintenance efficiency in workdays from actigraphy
Average daily sleep maintenance efficiency in workdays from actigraphy

Sleep maintenance efficiency is the ratio between sleep duration (i.e. total sleep time, tst) and sleep period in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep, while sleep period is the interval between sleep onset time and sleep offset time.

Sleep Monitoring/Actigraphy
avgnnapsall5
Average daily number of naps in all days from actigraphy
Average daily number of naps in all days from actigraphy

In this study, naps were marked based on sleep diaries and sustained periods (>5 minutes) of inactivity.

Sleep Monitoring/Actigraphy
avgnnapsallnw5
Average daily number of naps in non-workdays from actigraphy
Average daily number of naps in non-workdays from actigraphy

In this study, naps were marked based on sleep diaries and sustained periods (>5 minutes) of inactivity.

Sleep Monitoring/Actigraphy
avgnnapsallwd5
Average daily number of naps in weekdays from actigraphy
Average daily number of naps in weekdays from actigraphy

In this study, naps were marked based on sleep diaries and sustained periods (>5 minutes) of inactivity.

Sleep Monitoring/Actigraphy
avgnnapsallwe5
Average daily number of naps in weekends from actigraphy
Average daily number of naps in weekends from actigraphy

In this study, naps were marked based on sleep diaries and sustained periods (>5 minutes) of inactivity.

Sleep Monitoring/Actigraphy
avgnnapsallwo5
Average daily number of naps in workdays from actigraphy
Average daily number of naps in workdays from actigraphy

In this study, naps were marked based on sleep diaries and sustained periods (>5 minutes) of inactivity.

Sleep Monitoring/Actigraphy
avgnnapssleep155
Average daily number of naps (>= 15 minutes) in all days from actigraphy
Average daily number of naps (>= 15 minutes) in all days from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleep15nw5
Average daily number of naps (>= 15 minutes) in non-workdays from actigraphy
Average daily number of naps (>= 15 minutes) in non-workdays from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleep15wd5
Average daily number of naps (>= 15 minutes) in weekdays from actigraphy
Average daily number of naps (>= 15 minutes) in weekdays from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleep15we5
Average daily number of naps (>= 15 minutes) in weekends from actigraphy
Average daily number of naps (>= 15 minutes) in weekends from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleep15wo5
Average daily number of naps (>= 15 minutes) in workdays from actigraphy
Average daily number of naps (>= 15 minutes) in workdays from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleep5
Average daily number of naps (with some sleep are counted) in all days from actigraphy
Average daily number of naps (with some sleep are counted) in all days from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleepnw5
Average daily number of naps (with some sleep are counted) in non-workdays from actigraphy
Average daily number of naps (with some sleep are counted) in non-workdays from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleepwd5
Average daily number of naps (with some sleep are counted) in weekdays from actigraphy
Average daily number of naps (with some sleep are counted) in weekdays from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleepwe5
Average daily number of naps (with some sleep are counted) in weekends from actigraphy
Average daily number of naps (with some sleep are counted) in weekends from actigraphy Sleep Monitoring/Actigraphy
avgnnapssleepwo5
Average daily number of naps (with some sleep are counted) in workdays from actigraphy
Average daily number of naps (with some sleep are counted) in workdays from actigraphy Sleep Monitoring/Actigraphy
avgonsetlatency5
Average daily sleep onset latency in all days from actigraphy
Average daily sleep onset latency in all days from actigraphy

Sleep latency is the interval between the start of rest period (i.e. rest interval) and sleep onset time in main sleep.

Sleep Monitoring/Actigraphy
avgonsetlatencynw5
Average daily sleep onset latency in non-workdays from actigraphy
Average daily sleep onset latency in non-workdays from actigraphy

Sleep latency is the interval between the start of rest period (i.e. rest interval) and sleep onset time in main sleep.

Sleep Monitoring/Actigraphy
avgonsetlatencywd5
Average daily sleep onset latency in weekdays from actigraphy
Average daily sleep onset latency in weekdays from actigraphy

Sleep latency is the interval between the start of rest period (i.e. rest interval) and sleep onset time in main sleep.

Sleep Monitoring/Actigraphy
avgonsetlatencywe5
Average daily sleep onset latency in weekends from actigraphy
Average daily sleep onset latency in weekends from actigraphy

Sleep latency is the interval between the start of rest period (i.e. rest interval) and sleep onset time in main sleep.

Sleep Monitoring/Actigraphy
avgonsetlatencywo5
Average daily sleep onset latency in workdays from actigraphy
Average daily sleep onset latency in workdays from actigraphy

Sleep latency is the interval between the start of rest period (i.e. rest interval) and sleep onset time in main sleep.

Sleep Monitoring/Actigraphy
avgoutbedtime5
Average daily end time for rest period in all days from actigraphy
Average daily end time for rest period in all days from actigraphy

In this study, the end time for rest period (i.e. rest interval) is defined as the out-bed time in main sleeps.

Sleep Monitoring/Actigraphy
avgoutbedtimenw5
Average daily end time for rest period in non-workdays from actigraphy
Average daily end time for rest period in non-workdays from actigraphy

In this study, the end time for rest period (i.e. rest interval) is defined as the out-bed time in main sleeps.

Sleep Monitoring/Actigraphy