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sawa109 under Sleep Monitoring/Actigraphy in HCHS 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. This variable is similar to variable sawa34; however, sawa34 is derived from Actiware variable sawa24 before data optimization.
sawa34 under Sleep Monitoring/Actigraphy in HCHS variables
This variable is similar to variable sawa109; however, sawa34 is derived from Actiware variable sawa24 before data optimization.
avgmainteffwd5 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.