Related Variables
| csbre |
PSG Quality Assessment (SHHS2): Periodic breathing (10 min)
Scorer observed periodic breathing for a period of at least 10 minutes during study. |
Measurements/Polysomnography/Signal Quality | |
| recafsle |
PSG Quality Assessment (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 | |
| recbeaw |
PSG Quality Assessment (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 | |
| restan4 | PSG Scoring Notes (SHHS1): Intervening period bad EEG | Measurements/Polysomnography/Signal Quality | |
| restan5 | PSG Scoring Notes (SHHS1): Intervening period bad Resp./Oximetry | Measurements/Polysomnography/Signal Quality | |
| hrswd02 |
Sleep Habits (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 (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 (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 |