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Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-be

Name Label Folder
publicid
Public nuMoM2b ID
Public nuMoM2b ID Administrative
stdyvis
A4b. Visit of Sleep Study
A4b. Visit of Sleep Study Administrative
bmi
Body Mass Index (BMI)
Body Mass Index (BMI) Anthropometry
height
Height (cm) measured at study visit
Height (cm) measured at study visit Anthropometry
weight
Weight (kg) measured at study visit (1 or 3)
Weight (kg) measured at study visit (1 or 3) Anthropometry
age_at_stdydt
Age (years) at sleep study visit date
Age (years) at sleep study visit date Demographics
crace
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g Demographics
ga_at_stdydt
Gestational age (weeks) at sleep study visit date
Gestational age (weeks) at sleep study visit date Demographics
ahi_ap0uhp3x3u_f1t3
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_ap0uhp3x4u_f1t3
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (recommended) 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_ap0uhp3x5x4uhp5x3u_f1t3
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal, hypopneas with 30%-50% flow reduction and with >= 4% oxygen desaturation, and hypopneas with > 50% flow reduction with >= 3% oxygen desaturation) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal, hypopneas with 30%-50% flow reduction and with >= 4% oxygen desaturation, and hypopneas with > 50% flow reduction with >= 3% oxygen desaturation) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi_oa3uhp3x3u_f1t3
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with >= 3% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with >= 3% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi_oa4uhp3x4u_f1t3
Obstructive Apnea-Hypopnea Index: (Obstrcutive apneas with >= 4% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea-Hypopnea Index: (Obstrcutive apneas with >= 4% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (recommended) 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
avglvlhr_f1t3
Average heart rate during the total sleep duration from type III home sleep apnea test
Average heart rate during the total sleep duration from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep

Sleep Monitoring/Polysomnography/Heart Rate
avglvlsa_f1t3
Average oxygen saturation during in total sleep duration from type III home sleep apnea test
Average oxygen saturation during in total sleep duration from type III home sleep apnea test Sleep Monitoring/Polysomnography/Oxygen Saturation
minlvlsa_f1t3
Minimum level of oxygen saturation in total sleep duration from type III home sleep apnea test
Minimum level of oxygen saturation in total sleep duration from type III home sleep apnea test Sleep Monitoring/Polysomnography/Oxygen Saturation
pctdursp_salt90_f1t3
Percentage of total sleep duration with < 90% oxygen saturation from type III home sleep apnea test
Percentage of total sleep duration with < 90% oxygen saturation from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep

Sleep Monitoring/Polysomnography/Oxygen Saturation
ttldursp_f1t3
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type III home sleep apnea test
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type III home sleep apnea test

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

Sleep Monitoring/Polysomnography/Sleep Architecture
ttldurws_f1t3
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type III home sleep apnea test
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
ttleffbd_f1t3
Sleep Efficiency: the proportion of sleep duration in in-bed period from type III home sleep apnea test
Sleep Efficiency: the proportion of sleep duration in in-bed period from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time. Conventionally, this variable could be described as the ratio between total sleep time (TST) and time in bed (TIB).

Sleep Monitoring/Polysomnography/Sleep Architecture
ttlprdbd_f1t3
Total In-Bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type III home sleep apnea test
Total In-Bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type III home sleep apnea test

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

Sleep Monitoring/Polysomnography/Sleep Architecture
ahiq_f1t3
B3. AHI entered on QS Form. All apneas and hypopneas per hour of sleep. from type III home sleep apnea test
B3. AHI entered on QS Form. All apneas and hypopneas per hour of sleep. from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertahi50_f1t3
C1b1. Apnea-hypopnea index (AHI) > 50 (No/Yes) from type III home sleep apnea test
C1b1. Apnea-hypopnea index (AHI) > 50 (No/Yes) from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertecgafib_f1t3
b3f. Atrial fibrillation and/or flutter from type III home sleep apnea test
b3f. Atrial fibrillation and/or flutter from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertecghr150_f1t3
b3b. HR for >2 continuous minutes is >150 bpm from type III home sleep apnea test
b3b. HR for >2 continuous minutes is >150 bpm from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertecghr40_f1t3
b3a. HR for >2 continuous minutes is <40 bpm from type III home sleep apnea test
b3a. HR for >2 continuous minutes is <40 bpm from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertecgsecond_f1t3
b3d. Type 2 second degree AV block from type III home sleep apnea test
b3d. Type 2 second degree AV block from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertecgthird_f1t3
b3e. Third degree AV block from type III home sleep apnea test
b3e. Third degree AV block from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertecgwide_f1t3
b3c. Sustained wide complex rhythm from type III home sleep apnea test
b3c. Sustained wide complex rhythm from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alertecgyn_f1t3
b3. Specific heart rate and/or ECG finding (No/Yes) from type III home sleep apnea test
b3. Specific heart rate and/or ECG finding (No/Yes) from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alerthyporest_f1t3
b2a. Baseline O2 sat < 88% from type III home sleep apnea test
b2a. Baseline O2 sat < 88% from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alerthyposleep_f1t3
b2b. O2 sat during sleep <90% for >10% of sleep time from type III home sleep apnea test
b2b. O2 sat during sleep <90% for >10% of sleep time from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
alerthypoyn_f1t3
b2. Severe hypoxemia (No/Yes) from type III home sleep apnea test
b2. Severe hypoxemia (No/Yes) from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
anlysstartap_f1t3
B4a. AM/PM from type III home sleep apnea test
B4a. AM/PM from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
anlysstart_f1t3
B4. Analysis Start (0-1159) from type III home sleep apnea test
B4. Analysis Start (0-1159) from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
anlysstopap_f1t3
B5a. AM/PM from type III home sleep apnea test
B5a. AM/PM from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
anlysstop_f1t3
B5. Analysis Stop (0-1159) from type III home sleep apnea test
B5. Analysis Stop (0-1159) from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
artifact_f1t3
Total Artifact Time (Unscorable) from type III home sleep apnea test
Total Artifact Time (Unscorable) from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
avgspo2baseline_f1t3
Average oxygen saturation before sleep onset
Average oxygen saturation before sleep onset

The EDF and XML annotation files from the nuMoM2b sleep substudy were imported in Matlab for analysis of baseline SpO2 (oxygen saturation). First step involved identification of the initial sleep onset (stage=2). Sixty seconds of wake data preceding the initial sleep onset was identified as the baseline segment for calculation of average SpO2. If 60s of wake data was not present, 30s was used as the baseline segment. Average value of SpO2 signal was calculated at this baseline segment. If there was no usable SpO2 signal or baseline wake data before sleep onset, then baseline SpO2 is missing. A few subjects had less than 90% SpO2 at baseline either due to signal distortion/artifacts or baseline desaturation events and were marked as missing.

Sleep Monitoring/Polysomnography/Administrative
reviewerid_f1t3
Reviewer ID from type III home sleep apnea test
Reviewer ID from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
scorerid_f1t3
PSG Report: Scorer ID from type III home sleep apnea test
PSG Report: Scorer ID from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
scoreridqs_f1t3
Scorer ID from type III home sleep apnea test
Scorer ID from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
stdytype_f1t3
A4a. Type of Sleep Study from type III home sleep apnea test
A4a. Type of Sleep Study from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
totalhrs_f1t3
B6. Total recording period (hours) from type III home sleep apnea test
B6. Total recording period (hours) from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
totalmin_f1t3
B6. Total Recording Time (minutes) from type III home sleep apnea test
B6. Total Recording Time (minutes) from type III home sleep apnea test

Total analysis period: from "analysis starts" to "analysis ends"

Sleep Monitoring/Polysomnography/Administrative
unitid_f1t3
A5. Unit ID from type III home sleep apnea test
A5. Unit ID from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
urgalertyn_f1t3
C1. Did review result in urgent alerts? from type III home sleep apnea test
C1. Did review result in urgent alerts? from type III home sleep apnea test Sleep Monitoring/Polysomnography/Administrative
ahi_ap0uhp3x0u_f1t3
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with no oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with no oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_ap2uhp3x2u_f1t3
Apnea-Hypopnea Index: (All apneas with >= 2% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with >= 2% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_ap3uhp3x3u_f1t3
Apnea-Hypopnea Index: (All apneas with >= 3% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with >= 3% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_ap4uhp3x4u_f1t3
Apnea-Hypopnea Index: (All apneas with >= 4% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with >= 4% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (recommended) 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_ap5uhp3x5u_f1t3
Apnea-Hypopnea Index: (All apneas with >= 5% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with >= 5% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_ca0u_f1t3
Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_ca4u_f1t3
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_pb_ca0u_f1t3
Central Apnea Index (Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_pb_ca2u_f1t3
Central Apnea Index (Supine): (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Supine): (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_pb_ca3u_f1t3
Central Apnea Index (Supine): (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Supine): (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_pb_ca4u_f1t3
Central Apnea Index (Supine): (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Supine): (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_pb_ca5u_f1t3
Central Apnea Index (Supine): (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Supine): (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_po_ca0u_f1t3
Central Apnea Index (Non-Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Non-Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_po_ca2u_f1t3
Central Apnea Index (Non-Supine): (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Non-Supine): (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_po_ca3u_f1t3
Central Apnea Index (Non-Supine): (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Non-Supine): (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_po_ca4u_f1t3
Central Apnea Index (Non-Supine): (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Non-Supine): (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai_po_ca5u_f1t3
Central Apnea Index (Non-Supine): (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Central Apnea Index (Non-Supine): (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_hp3x5x0u_f1t3
Hypopnea Index: (Hypopneas with 30 - 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index: (Hypopneas with 30 - 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_hp5x0u_f1t3
Hypopnea Index: (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index: (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. Hypopneas are defined based on American Academy of Sleep Medicine (AASM) Chicago 1999 standard. Sleep 1999 (PubMed ID:10450601) Search for all AHI variables consistent with the same clinical guidelines within this dataset

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp3x0u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp3x2u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp3x3u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp3x4u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (recommended) 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
hi_pb_hp3x5u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 30% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp5x0u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used and with or witout arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and with no oxygen desaturation threshold used and with or witout arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. Hypopneas are defined based on American Academy of Sleep Medicine (AASM) Chicago 1999 standard. Sleep 1999 (PubMed ID:10450601)

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

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp5x2u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp5x3u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp5x4u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_pb_hp5x5u_f1t3
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp3x0u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp3x2u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp3x3u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp3x4u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (recommended) 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
hi_po_hp3x5u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 30% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp5x0u_f1t3
Hypopnea Index (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or witout arousal / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or witout arousal / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. Hypopneas are defined based on American Academy of Sleep Medicine (AASM) Chicago 1999 standard. Sleep 1999 (PubMed ID:10450601)

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

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp5x2u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp5x3u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp5x4u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi_po_hp5x5u_f1t3
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Hypopnea Index (Non-Supine): (Hypopneas with > 50% flow reduction and >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_oa0u_f1t3
Obstructive Apnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_oa4u_f1t3
Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_pb_oa0u_f1t3
Obstructive Apnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_pb_oa2u_f1t3
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_pb_oa3u_f1t3
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_pb_oa4u_f1t3
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_pb_oa5u_f1t3
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Supine): (Obstructive apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_po_oa0u_f1t3
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_po_oa2u_f1t3
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 2% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_po_oa3u_f1t3
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_po_oa4u_f1t3
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai_po_oa5u_f1t3
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test
Obstructive Apnea Index (Non-Supine): (Obstructive apneas with >= 5% oxygen desaturation and with or without arousal) / hour of sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
avglvlhr_ap0uhp3x0u_f1t3
Average heart rate associated with apneas with no oxygen desaturation threshold used and with or without arousal, and hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal during total sleep duration from type III home sleep apnea test
Average heart rate associated with apneas with no oxygen desaturation threshold used and with or without arousal, and hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal during total sleep duration from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep

Sleep Monitoring/Polysomnography/Heart Rate
avglvlhr_pbd0_f1t3
Average heart rate (supine) associated with > 0% oxygen desaturation during total sleep duration from type III home sleep apnea test
Average heart rate (supine) associated with > 0% oxygen desaturation during total sleep duration from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep

Sleep Monitoring/Polysomnography/Heart Rate