Name
sdefficiencywe5
Label
Standard deviation of the daily sleep efficiency in weekends from actigraphy
Description

Sleep efficiency is the proportion of sleep duration (i.e. total sleep time, tst) in total rest period (i.e. rest interval) in main sleep. Sleep duration is the interval between sleep onset time and sleep offset time while asleep. In this study, rest interval is the same as in-bed period.

Units
percent (%)
Type
numeric
MESA exam number vs Standard deviation of the daily sleep efficiency in weekends from actigraphy
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,110 2.5 ± 2.8 1.8 0.0009 54.6 127 2,237
Participant Age at MESA Sleep Visit vs Standard deviation of the daily sleep efficiency in weekends from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,110 2.5 ± 2.8 1.8 0.0009 54.6 127 2,237
54.0 to 62.0 years 535 2.3 ± 2.1 1.7 0.004 16.7 25 560
62.0 to 69.0 years 529 2.6 ± 3.0 1.8 0.003 26.0 30 559
69.0 to 77.0 years 521 2.4 ± 3.2 1.6 0.0009 54.6 38 559
77.0 to 95.0 years 525 2.5 ± 2.5 1.9 0.01 20.3 34 559
Gender of the participant vs Standard deviation of the daily sleep efficiency in weekends from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,110 2.5 ± 2.8 1.8 0.0009 54.6 127 2,237
Female 1,135 2.4 ± 2.8 1.7 0.003 54.6 63 1,198
Male 975 2.5 ± 2.7 1.8 0.0009 26.0 64 1,039
Race/ethnicity of the participant vs Standard deviation of the daily sleep efficiency in weekends from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,110 2.5 ± 2.8 1.8 0.0009 54.6 127 2,237
White, Caucasian 796 2.1 ± 2.2 1.5 0.0009 13.5 34 830
Chinese American 238 2.7 ± 3.0 1.8 0.005 19.8 27 265
Black, African-American 582 2.8 ± 3.3 2.1 0.01 54.6 34 616
Hispanic 494 2.6 ± 2.7 1.9 0.009 26.0 32 526