Related Variables
| restan4 |
Polysomnography (PSG) Scoring Notes (Sleep Heart Health Study Visit One (SHHS1)): Intervening period bad EEG
"1: Yes", this indicates more than 30 minutes of the sleep period had either lost or unscorable EEG data |
Measurements/Polysomnography/Signal Quality/SHHS1 | |
| restan5 | Polysomnography (PSG) Scoring Notes (Sleep Heart Health Study Visit One (SHHS1)): Intervening period bad Resp./Oximetry | Measurements/Polysomnography/Signal Quality/SHHS1 | |
| csbre |
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Periodic breathing (10 minutes)
Scorer observed periodic breathing for a period of at least 10 minutes during study. |
Measurements/Polysomnography/Signal Quality/SHHS2 | |
| recafsle |
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Data Lost - Recording began after sleep
Data was lost at the beginning of sleep period because recording began after sleep onset. |
Measurements/Polysomnography/Signal Quality/SHHS2 | |
| recbeaw |
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Data Lost - Recording ended before wake
Data was lost at the end of sleep period because recording ended before wake. |
Measurements/Polysomnography/Signal Quality/SHHS2 | |
| slp_time |
Sleep time when entire sleep was captured
Sleep time will be missing for studies where the entire sleep period was not captured. |
Measurements/Polysomnography/Sleep Architecture | |
| hrswd02 |
Sleep Habits (Sleep Heart Health Study Visit One (SHHS1)): sleep time on weekdays
How many hours of sleep do you usually get at night (or your main sleep period) on weekdays or workdays? (number of hours, up to 2 digits) |
Questionnaires/SHHS1/Sleep Habits | |
| hrswe02 |
Sleep Habits (Sleep Heart Health Study Visit One (SHHS1)): sleep time on weekends
How many hours of sleep do you usually get at night (or your main sleep period) on weekends or your non-workdays? (number of hours, up to 2 digits) |
Questionnaires/SHHS1/Sleep Habits | |
| sh322 |
Sleep Habits (Sleep Heart Health Study Visit Two (SHHS2)): Did not smoke for a year while smoker
22. Since you began smoking, was there ever a period of one year or more that you did NOT smoke? |
Questionnaires/SHHS2/Sleep Habits | |
| signal | EEG Signal | Spectral Analysis |