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chestdur under Sleep Monitoring/Polysomnography/Signal Quality in SHHS variables
Hours of useable signal are rounded out to the lowest whole integer (e.g. 4.6 hours of useable data = 4). Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths
abdodur under Sleep Monitoring/Polysomnography/Signal Quality in SHHS variables
Hours of useable signal are rounded out to the lowest whole integer (e.g. 4.6 hours of useable data = 4). Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths
quchest under Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 in SHHS variables
Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths.
chstqual under Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 in SHHS variables
Sleep Heart Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths
abdoqual under Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 in SHHS variables
Sleep Hearth Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths
quabdo under Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 in SHHS variables
Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths.
abdohrs under Sleep Monitoring/Polysomnography/Signal Quality in HEARTBEAT variables
abdoqual under Sleep Monitoring/Polysomnography/Signal Quality in HEARTBEAT variables
sumhrs under Sleep Monitoring/Polysomnography/Signal Quality in HEARTBEAT variables
sumqual under Sleep Monitoring/Polysomnography/Signal Quality in HEARTBEAT variables
thorhrs under Sleep Monitoring/Polysomnography/Signal Quality in HEARTBEAT variables
thorqual under Sleep Monitoring/Polysomnography/Signal Quality in HEARTBEAT variables
chestdur under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables
quabdo under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables
quchest under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables
qusum under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables
Quality of SUM channel
sumdur under Sleep Monitoring/Polysomnography/Signal Quality in CHAT variables