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avgmainteffwe5 under Sleep Monitoring/Actigraphy in MESA variables
Sleep maintenance efficiency is the ratio between sleep duration (i.e. total sleep time, tst) and sleep period in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep, while sleep period is the interval between sleep onset time and sleep offset time.
sawa156 under Sleep Monitoring/Actigraphy in HCHS variables
This variable is similar to variable sawa33; however, sawa33 is derived from Actiware variable sawa24 before data optimization.
sawa33 under Sleep Monitoring/Actigraphy in HCHS variables
This variable is similar to variable sawa156; however, sawa33 is derived from Actiware variable sawa24 before data optimization.