slpeff - Search - Sleep Data - National Sleep Research Resource

Sleep Efficiency (split-night, diagnostic): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography

slpeff_d under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep (i.e. total sleep time, TST), while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time (i.e. time in bed, TIB).

Sleep Efficiency (split-night, treatment): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography

slpeff_t under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables

Pittsburgh Sleep Quality Index: Habitual sleep efficiency component subscore

pqpeffcy under Sleep Questionnaires/Pittsburgh Sleep Quality Index (PSQI) in MROS variables

Subscore based on 3 items from Pittsburgh Sleep Quality Index, with a range of 0-3. A score of "0" indicates no difficulty, while a score of "3" indicates severe difficulty. Buysse et. al 1989 (PubMed ID: 2748771) Search for all PSQI variables within this dataset

Pittsburgh Sleep Quality Index: Habitual sleep efficiency component subscore

pqpeffic under Sleep Questionnaires/Pittsburgh Sleep Quality Index (PSQI) in MROS variables

Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type III home sleep apnea test

ttleffbd_f1t3 under Sleep Monitoring/Polysomnography/Sleep Architecture in NUMOM2B variables

Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)