obstructive - Search - Sleep Data - National Sleep Research Resource

Urgent Referral - Obstructive Apnea Index (OAI) > 20 or Apnea-Hypopnea Index (AHI) > 30 = 1 Urgent Ineligible

ahiov30 under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables

qsoai under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables

Recorded by the scorer on QS form

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

cent_obs_ratio under Sleep Monitoring/Polysomnography/Respiratory Event Counts in MESA variables

Calculated

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

cent_obs_ratioa under Sleep Monitoring/Polysomnography/Respiratory Event Counts in MESA variables

Calculated

Total number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal during REM sleep in non-supine position from type II polysomnography

oarop5 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in MESA variables

Average length of obstructive apneas with no oxygen desaturation threshold and with or without arousal from type II polysomnography

oavgdur5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA variables

Sleep Apnea: Self-reported diagnosis by a physician

slpapnea5 under Sleep Questionnaires/Sleep Disorder in MESA variables

Original question: 21a. Have you been told by a doctor that you have any of the following: Sleep Apnea (or obstructive sleep apnea, OSA)?

Chronic Bronchitis: Self-reported diagnosis by a physician

dxbronchitis under Medical History in HEARTBEAT variables

Polysomnography (PSG) Quality Assessment: Medical Alert - Apnea-Hypopnea Index (AHI) > 50

ahiov50 under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Polysomnography (PSG) Quality Assessment: Apnea/Hypopnea scoring problems

apnhyppr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Due to signal problems, scorer was unable to reliably distinguish between apnea and hypopnea events. The distinction between apnea and hypopnea was determined to be unreliable.

Polysomnography (PSG) Quality Assessment: Long respiratory events verified

maxresou under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

If a respiratory event greater than 150 seconds (s) in duration was observed, scorer has verified that this value is real.

50 percent of periodic limb movements (PLMs) deleted due to occurrence after respiratory event?

plmdel under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Polysomnography (PSG) Quality Assessment: Respiratory Disturbance Index (RDI)=0 real

rdi0ou under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

If Respiratory Disturbance Index (RDI) = 0, scorer has verified that this value is real.

Polysomnography (PSG) Quality Assessment: Respiratory scoring problems

respevpr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Due to signal problems, scorer noted that there was a problem scoring respiratory events.

Emphysema/Obstructive Lung Disease: Self-reported year of diagnosis

emphysema_year under Medical History in WSC variables

If yes, indicate how many years ago ____ or the year ____ you were diagnosed. (if Emphysema/Obstructive Lung Disease?="Y")

History of Chronic Bronchitis (Sleep Heart Health Study Visit One (SHHS1))

crbron15 under Medical History/SHHS1 in SHHS variables

Doctor of Medicine (MD) said participant had chronic bronchitis?

History of Emphysema (Sleep Heart Health Study Visit One (SHHS1))

emphys15 under Medical History/SHHS1 in SHHS variables

Doctor of Medicine (MD) said participant had emphysema?

History of Emphysema (Sleep Heart Health Study Visit Two (SHHS2))

hi201a under Medical History/SHHS2 in SHHS variables

Has a doctor ever told you that you have the following? a. Emphysema

History of Chronic Bronchitis (Sleep Heart Health Study Visit Two (SHHS2))

hi201b under Medical History/SHHS2 in SHHS variables

Has a doctor ever told you that you have the following? b. Chronic bronchitis