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avginbedwakenw5 under Sleep Monitoring/Actigraphy in MESA variables
Duration of wake in bed is the sum of sleep latency, wake after sleep onset (WASO) and wake after sleep offset in main sleep. Conventionally, this variable would be called "total wake time" (TWT).
psqi_5a under Sleep Questionnaires/Sleep Habits/Pittsburgh Sleep Quality Index (PSQI) in ANSWERS variables
Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771)External semantic reference: CDEOriginal text: The following questions relate to your usual sleep habits during the past month only. Your answers should indicate the most accurate reply for the majority of days and nights in the past month. During the past month how often have you had trouble sleeping because you: cannot get to sleep within 30 mins? Search for all PSQI variables within this dataset
Apnea Positive Pressure Long-term Efficacy Study
Background The Apnea Positive Pressure Long-term Efficacy Study (APPLES) was ...
remlaiip under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables
Total sleep time from beginning of sleep to first epoch of rapid eye movement sleep (REM) (excluding wake)
Childhood Adenotonsillectomy Trial
3.2 Condensed Data Dictionary A Condensed PSG Data Dictionary (DD) ...
sawa19 under Sleep Monitoring/Actigraphy in HCHS variables
This variable is similar to sawa56; however, sawa19 is generated by Actiware software before data optimization.
sawa56 under Sleep Monitoring/Actigraphy in HCHS variables
This variable is similar to sawa19; however, sawa19 is generated by Actiware software before data optimization.
nsrr_ttlprdsp_s1sr under Harmonized/Polysomnography/Sleep Architecture in APPLES variables
Harmonized by the NSRR team. Source: :soremfsopsg:
Sutherland, K., Yee, B. J., Kairaitis, K., Wheatley, J., de ...
Sleep Heart Health Study
6.6.2.2 Sleep onset Sleep onset is defined by three consecutive ...
pqp30m under Sleep Questionnaires/Pittsburgh Sleep Quality Index (PSQI) in MROS variables
Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) Search for all PSQI variables within this datasetOriginal question: During the past month, how often have you had trouble sleeping because you cannot get to sleep within 30 minutes?
pqpslpm under Sleep Questionnaires/Pittsburgh Sleep Quality Index (PSQI) in MROS variables
Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) Search for all PSQI variables within this datasetOriginal question: During the past month, how long has it usually taken you to fall asleep each night?
pqpslpm4 under Sleep Questionnaires/Pittsburgh Sleep Quality Index (PSQI) in MROS variables
Item from Pittsburgh Sleep Quality Index. Buysse et. al 1989 (PubMed ID: 2748771) Search for all PSQI variables within this datasetOriginal question: During the past month, how long has it usually taken you to fall asleep each night?
minfa10 under Sleep Monitoring/Polysomnography/Evening and Morning Survey/SHHS1 in SHHS variables
How many minutes did it take for you to fall asleep at bedtime last night? (number of minutes, up to 3 digits)