Related Variables
| ai_all |
Overall Arousal Index
Arousal Index - total arousals per hour of sleep [(Total number of arousals) / (hours of sleep)] |
Sleep/Polysomnography/Arousals | |
| ai_nrem |
Arousal Index NREM
Non-REM Arousal Index - total arousals in non-REM sleep per hours of non-REM sleep [(Total number of arousals in non-REM sleep) / (hours of non-REM sleep)] |
Sleep/Polysomnography/Arousals | |
| cai0p |
Central apnea index all desaturations
Central apnea index at all desaturations [(Total number of central apneas associated with all desaturations) / (hours of sleep)]. Will be missing if total sleep time is 0. |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| cai4p |
Central apnea index 4% desaturations
Central apnea index at 4% desaturations [(Total number of central apneas associated with >= 4% desaturations) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| cai4pa |
Central apnea index 4% or arousal
Central apnea index with arousal at 4% desaturation [(Total number of central apneas with arousals associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| hi | Hypopnea Index with Arousal: 60 * (hremba3 + hroa3 + hnrba3 + hnroa3) / slpprdp | Sleep/Polysomnography/Respiratory Events/Indexes | |
| oahi3 |
Obstructive apnea (all desaturations) hypopnea (3% desaturation) index
Obstructive apnea hypopnea index {[(total number of obstructive apneas) + (total number of hypopneas associated with >= 3% desaturation)] / (hours of sleep)} |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| oahi4 |
Obstructive apnea (all desaturations) hypopnea (4% desaturation) index
Obstructive apnea hypopnea index {[(total number of obstructive apneas) + (total number of hypopneas associated with >= 4% desaturation)] / (hours of sleep)} |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| oai0p |
Obstructive apnea index (all obstructives with all desaturations)
Obstructive apnea index [(total number of obstructive apneas associated with all desaturations) / (hours of sleep)]. will be missing if total sleep time is 0. |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| oai4p |
Obstructive apnea index 4% desaturations
Obstructive apnea index at 4% desaturation [(total number of obstructive apneas associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| oai4pa |
Obstructive apnea index 4% or arousal
Obstructive apnea index with arousal at 4% desaturation [(total number of obstructive apneas with arousals associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| omahi3 |
CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal) no centrals
CHAT apnea hypopnea index {[(total number of obstructive apneas) + (total number of mixed apneas) + (total number of hypopneas associated with >= 3% desaturation or arousal)] / (hours of sleep)}. will be missing if total sleep time is 0. |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| omahi3b |
Supine CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)
CHAT apnea hypopnea index {[(total number of obstructive apneas) + (total number of mixed apneas) + (total number of hypopneas associated with >= 3% desaturation or arousal)] / (hours of sleep)}. will be missing if total sleep time is 0. |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| omahi3nr |
Non-REM CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)
CHAT apnea hypopnea index {[(total number of obstructive apneas) + (total number of mixed apneas) + (total number of hypopneas associated with >= 3% desaturation or arousal)] / (hours of sleep)}. will be missing if total sleep time is 0. |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| omahi3o |
Non-supine CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)
CHAT apnea hypopnea index {[(total number of obstructive apneas) + (total number of mixed apneas) + (total number of hypopneas associated with >= 3% desaturation or arousal)] / (hours of sleep)}. will be missing if total sleep time is 0. |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| omahi3r |
REM CHAT AHI (obstructive apneas all desaturations, mixed apneas all desaturations, plus hypopneas with 3% or arousal)
CHAT apnea hypopnea index {[(total number of obstructive apneas) + (total number of mixed apneas) + (total number of hypopneas associated with >= 3% desaturation or arousal)] / (hours of sleep)}. will be missing if total sleep time is 0. |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| omai0p | CHAT OAI (obstructive/mixed apnea index all desaturations) no centrals | Sleep/Polysomnography/Respiratory Events/Indexes | |
| omai4p |
Obstructive/mixed apnea index 4% desaturations
Obstructive / mixed apnea index at 4% desaturations [(total number of obstructive apneas associated with >= 4% desaturation+ total number of mixed apneas associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| omai4pa |
Obstructive/mixed apnea index 4% or arousal
Obstructive / mixed apnea index with arousals at 4% desaturation [(total number of obstructive apneas with aroual associated with >= 4% desaturation+ total number of mixed apneas with arousal associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim0p |
Overall RDI at 0% desaturation
RDI at all desaturations [(total number of apneas and hypopneas) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim0pa |
Overall RDI at 0% desaturation or arousal
RDI with arousals at all desaturations [(total number of apneas and hypopneas with arousal) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim2p |
Overall RDI at 2% desaturation
RDI at 2% desaturation [(total number of apneas and hypopneas associated with >= 2% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim2pa |
Overall RDI at 2% desaturation or arousal
RDI with arousals at 2% desaturation [(total number of apneas and hypopneas with arousal associated with >= 2% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim3p |
Overall RDI at 3% desaturation
RDI at 3% desaturation [(total number of apneas and hypopneas associated with >= 3% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim3pa |
Overall RDI at 3% desaturation or arousal
RDI with arousals at 3% desaturation [(total number of apneas and hypopneas with arousal associated with >= 3% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim4p |
Overall RDI at 4% desaturation
RDI at 4% desaturation [(total number of apneas and hypopneas associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim4pa |
Overall RDI at 4% desaturation or arousal
RDI with arousals at 4% desaturation [(total number of apneas and hypopneas with arousal associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim5p |
Overall RDI at 5% desaturation
RDI at 5% desaturation [(total number of apneas and hypopneas associated with >= 5% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim5pa |
Overall RDI at 5% desaturation or arousal
RDI with arousals at 5% desaturation [(total number of apneas and hypopneas with arousal associated with >= 5% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdimnr0p |
Overall non-rem RDI at 0% desaturation
Non-REM RDI at all desaturations [(total number of apneas and hypopneas in non-REM sleep) / (hours of NREM sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdimnr2p |
Overall non-rem RDI at 2% desaturation
Non-REM RDI at 2% desaturation [(total number of apneas and hypopneas in non-REM sleep associated with >= 2% desaturation) / (hours of NREM sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdimnr3p |
Overall non-rem RDI at 3% desaturation
Non-REM RDI at 3% desaturation [(total number of apneas and hypopneas in non-REM sleep associated with >= 3% desaturation) / (hours of NREM sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdimnr4p |
Overall non-rem RDI at 4% desaturation
Non-REM RDI at 4% desaturation [(total number of apneas and hypopneas in non-REM sleep associated with >= 4% desaturation) / (hours of NREM sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdimnr5p |
Overall non-rem RDI at 5% desaturation
Non-REM RDI at 5% desaturation [(total number of apneas and hypopneas in non-REM sleep associated with >= 5% desaturation) / (hours of NREM sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| nsupinep |
Percentage time non-supine
Percent of sleep time in non-supine body position [100*(number of minutes of sleep in non-supine body position) / (total sleep time)] |
Sleep/Polysomnography/Sleep Architecture | |
| slp_eff |
Sleep efficiency percentage
Percentage of time in bed that was spent sleeping [100*(total sleep time) / (total time in bed)] |
Sleep/Polysomnography/Sleep Architecture | |
| slp_time |
Total sleep time
Total time from lights out to lights on that is scored as sleep, rounded to nearest minute |
Sleep/Polysomnography/Sleep Architecture | |
| supinep |
Percentage of time supine
Percent of sleep time in supine body position [100*(number of minutes of sleep in supine body position) / (total sleep time)] |
Sleep/Polysomnography/Sleep Architecture | |
| waso |
Wake after sleep onset
Total amount of time spent awake after going to sleep [(time in bed) - (sleep latency) - (total sleep time)] |
Sleep/Polysomnography/Sleep Architecture |