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Cleveland Children's Sleep and Health Study

Name Label Folder
ahi_a0h3
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep Measurements/Polysomnography (PSG)
ahi_a0h3a
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep Measurements/Polysomnography (PSG)
ahi_a0h4
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep Measurements/Polysomnography (PSG)
ahi_a0h4a
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep Measurements/Polysomnography (PSG)
ahi_c0h3
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep Measurements/Polysomnography (PSG)
ahi_c0h3a
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep Measurements/Polysomnography (PSG)
ahi_c0h4
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep Measurements/Polysomnography (PSG)
ahi_c0h4a
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep Measurements/Polysomnography (PSG)
ahi_o0h3
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep Measurements/Polysomnography (PSG)
ahi_o0h3a
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep Measurements/Polysomnography (PSG)
ahi_o0h4
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep Measurements/Polysomnography (PSG)
ahi_o0h4a
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep Measurements/Polysomnography (PSG)
ai_all
Overall arousal index
Overall arousal index

Total number of arousals per hour of sleep. Ratio of count of arousals to total sleep time in hours. [(Total number of arousals) / (hours of sleep)]

Measurements/Polysomnography (PSG)
avgsat
Average oxygen saturation (SaO2) in sleep time
Average oxygen saturation (SaO2) in sleep time Measurements/Polysomnography (PSG)
pctlt90
Percent of sleep time <90% oxygen saturation (SaO2)
Percent of sleep time <90% oxygen saturation (SaO2)

Ratio of the number of minutes with oxygen saturation (SaO2) under 90% to the total sleep time expressed in hours.

Measurements/Polysomnography (PSG)
rdi3p
Overall Respiratory Disturbance Index (RDI) at >=3% oxygen desaturation
Overall Respiratory Disturbance Index (RDI) at >=3% oxygen desaturation

[(total number of apneas and hypopneas associated with >= 3% oxygen desaturation) / (hours of sleep)]

Measurements/Polysomnography (PSG)
slp_eff
Sleep efficiency
Sleep efficiency

Percentage of time in bed that was spent sleeping, or the ratio of total sleep time to total time in bed, expressed as a percentage. [100*(total sleep time) / (total time in bed)]

Measurements/Polysomnography (PSG)
slpprdp
Total sleep time
Total sleep time

Total time from lights out to lights on that is scored as sleep (rounded to nearest minute)

Measurements/Polysomnography (PSG)
canbp
Number of central apnea (Non-rapid eye movement sleep (NREM), Supine, all oxygen desaturations)
Number of central apnea (Non-rapid eye movement sleep (NREM), Supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
canop
Number of central apnea (Non-rapid eye movement sleep (NREM), Non-supine, all oxygen desaturations)
Number of central apnea (Non-rapid eye movement sleep (NREM), Non-supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
carbp
Number of central apnea (Rapid eye movement sleep (REM), Supine, all oxygen desaturations)
Number of central apnea (Rapid eye movement sleep (REM), Supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
carop
Number of central apnea (Rapid eye movement sleep (REM), Non-supine, all oxygen desaturations)
Number of central apnea (Rapid eye movement sleep (REM), Non-supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
hnrba3
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine)
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine) Measurements/Polysomnography (PSG)
hnrba4
Number of Hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine)
Number of Hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine) Measurements/Polysomnography (PSG)
hnrbp3
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=3% oxygen desaturation)
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=3% oxygen desaturation) Measurements/Polysomnography (PSG)
hnrbp4
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=4% oxygen desaturation)
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=4% oxygen desaturation) Measurements/Polysomnography (PSG)
hnroa3
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine)
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine) Measurements/Polysomnography (PSG)
hnroa4
Number of hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine)
Number of hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine) Measurements/Polysomnography (PSG)
hnrop3
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=3% oxygen desaturation)
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=3% oxygen desaturation) Measurements/Polysomnography (PSG)
hnrop4
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=4% oxygen desaturation)
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=4% oxygen desaturation) Measurements/Polysomnography (PSG)
hremba3
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine)
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine) Measurements/Polysomnography (PSG)
hremba4
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine)
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine) Measurements/Polysomnography (PSG)
hrembp3
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=3% oxygen desaturation)
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=3% oxygen desaturation) Measurements/Polysomnography (PSG)
hrembp4
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=4% oxygen desaturation)
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=4% oxygen desaturation) Measurements/Polysomnography (PSG)
hroa3
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine)
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine) Measurements/Polysomnography (PSG)
hroa4
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine)
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine) Measurements/Polysomnography (PSG)
hrop3
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=3% oxygen desaturation)
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=3% oxygen desaturation) Measurements/Polysomnography (PSG)
hrop4
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=4% oxygen desaturation)
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=4% oxygen desaturation) Measurements/Polysomnography (PSG)
minsat
Minimum oxygen saturation (SaO2) in sleep time
Minimum oxygen saturation (SaO2) in sleep time

Lowest oxygen saturation (SaO2)% during sleep

Measurements/Polysomnography (PSG)
oahi3
Obstructive apnea (all oxygen desaturations) hypopnea (>= 3% oxygen desaturation) index
Obstructive apnea (all oxygen desaturations) hypopnea (>= 3% oxygen desaturation) index

Ratio of the count of all obstructive apneas (all desaturations) plus the count of hypopneas associated with at least a >=3% oxygen desaturation to the total sleep time expressed in hours.

Measurements/Polysomnography (PSG)
oai0p
Obstructive Apnea Index all oxygen desaturations
Obstructive Apnea Index all oxygen desaturations

Obstructive Apnea Index at all desaturations [(Total number of obstructive apneas associated with all desaturations) / (hours of sleep)]

Measurements/Polysomnography (PSG)
oanbp
Number of obstructive apnea (Non-rapid eye movement sleep (NREM), Supine, all oxygen desaturations)
Number of obstructive apnea (Non-rapid eye movement sleep (NREM), Supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
oanop
Number of obstructive apnea (Non-rapid eye movement sleep (NREM), Non-supine, all oxygen desaturations)
Number of obstructive apnea (Non-rapid eye movement sleep (NREM), Non-supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
oarbp
Number of obstructive apnea (Rapid eye movement sleep (REM), Supine, all oxygen desaturations)
Number of obstructive apnea (Rapid eye movement sleep (REM), Supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
oarop
Number of obstructive apnea (Rapid eye movement sleep (REM), Non-supine, all oxygen desaturations)
Number of obstructive apnea (Rapid eye movement sleep (REM), Non-supine, all oxygen desaturations) Measurements/Polysomnography (PSG)
pctlt70
Percent of sleep time <70% oxygen saturation (SaO2)
Percent of sleep time <70% oxygen saturation (SaO2)

Ratio of the number of minutes with oxygen saturation (SaO2) under 70% to the total sleep time expressed in hours.

Measurements/Polysomnography (PSG)
pctlt75
Percent of sleep time <75% oxygen saturation (SaO2)
Percent of sleep time <75% oxygen saturation (SaO2)

Ratio of the number of minutes with oxygen saturation (SaO2) under 75% to the total sleep time expressed in hours.

Measurements/Polysomnography (PSG)
pctlt80
Percent of sleep time <80% oxygen saturation (SaO2)
Percent of sleep time <80% oxygen saturation (SaO2)

Ratio of the number of minutes with oxygen saturation (SaO2) under 80% to the total sleep time expressed in hours.

Measurements/Polysomnography (PSG)
pctlt85
Percent of sleep time <85% oxygen saturation (SaO2)
Percent of sleep time <85% oxygen saturation (SaO2)

Ratio of the number of minutes with oxygen saturation (SaO2) under 85% to the total sleep time expressed in hours.

Measurements/Polysomnography (PSG)
pctlt95
Percent of sleep time <95% oxygen saturation (SaO2)
Percent of sleep time <95% oxygen saturation (SaO2)

Ratio of the number of minutes with oxygen saturation (SaO2) under 95% to the total sleep time expressed in hours.

Measurements/Polysomnography (PSG)
timerem
Time in rapid eye movement sleep (REM)
Time in rapid eye movement sleep (REM)

Total time scored as rapid eye movement sleep (REM) rounded to nearest minute

Measurements/Polysomnography (PSG)
timeremp
Percent of sleep time in rapid eye movement sleep (REM)
Percent of sleep time in rapid eye movement sleep (REM)

[100*(number of minutes scored as REM) / (total sleep time)] * 100

Measurements/Polysomnography (PSG)
times34p
Percent of sleep time in Stage 3-4
Percent of sleep time in Stage 3-4

[100*(number of minutes scored as stage 3-4 sleep)/(total sleep time)]

Measurements/Polysomnography (PSG)
timest1
Time in Stage 1 sleep
Time in Stage 1 sleep

Total time scored as stage 1 sleep rounded to nearest minute

Measurements/Polysomnography (PSG)
timest1p
Percent of sleep time in Stage 1 sleep
Percent of sleep time in Stage 1 sleep

[100*(number of minutes scored as stage 1 sleep)/(total sleep time)]

Measurements/Polysomnography (PSG)
timest2
Time in Stage 2 sleep
Time in Stage 2 sleep

Total time scored as stage 2 sleep rounded to nearest minute

Measurements/Polysomnography (PSG)
timest2p
Percent of sleep time in Stage 2 sleep
Percent of sleep time in Stage 2 sleep

[100*(number of minutes scored as stage 2 sleep)/(total sleep time)]

Measurements/Polysomnography (PSG)
timest34
Time in Stage 3/4 sleep
Time in Stage 3/4 sleep

Total time scored as stage 3/4 sleep rounded to nearest minute

Measurements/Polysomnography (PSG)