central - Search - Sleep Data - National Sleep Research Resource

Total duration of all central and obstructive apneas from type I polysomnography

aptdur under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration (entire recording)

Average duration of central apnea from type I polysomnography

cavgdur under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration (entire recording)

Total duration of central apnea in NREM sleep from type I polysomnography

cntdur under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration

Total duration of central apnea in NREM sleep in supine position from type I polysomnography

cntdurbp under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration

Total duration of central apnea in NREM sleep in non-supine position from type I polysomnography

cntdurop under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration

Total duration of central apnea in REM sleep in supine position from type I polysomnography

crtdurbp under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration

Total duration of central apnea in REM sleep in non-supine position from type I polysomnography

crtdurop under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration

Total duration of central apnea from type I polysomnography

ctdur under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in CHAT variables

duration

Child is unaware of how his/her behavior affects or bothers others

behavior3_mom under Lifestyle and Behavioral Health/Infant and Child Behavioral Health in SHINE variables

Maternal ReportedSpanish: Queda atrapado en los detalles sin importancia de una tarea o situación, y pierde de vista la idea central

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

Average length of central apneas with no oxygen desaturation threshold used and with or without arousal during sleep from type II polysomnography

cavgdur5 under Sleep Monitoring/Polysomnography/Respiratory Event Lengths in MESA 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.

Diagnosed or treated by a physician for hypertension?

med1m2 under Medical History in CHAT variables

Also known as high blood pressure

Currently taking medication for hypertension?

med1m4 under Medical History in CHAT variables

Also known as high blood pressure