Name
slpmaineff
Label
Sleep Maintenance Efficiency (%): the proportion of sleep duration in sleep period
Description

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, while sleep period is the interval between sleep onset time and lights on/out-bed time. Conventionally this variable would be described as the ratio between total sleep time (TST) and the sum of TST and wake after sleep onset (WASO).

Type
numeric
Labels
A4b. Visit of Sleep Study vs Sleep Maintenance Efficiency (%): the proportion of sleep duration in sleep period
N Mean StdDev Median Min Max Unknown Total
Visit 1 3,012 96.5 ± 7.0 98.6 30.0 100.8 - 3,012
Visit 3 2,332 96.3 ± 7.1 98.5 25.7 101.0 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Sleep Maintenance Efficiency (%): the proportion of sleep duration in sleep period
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 3,012 96.5 ± 7.0 98.6 30.0 100.8 - 3,012
Non-Hispanic White 1,842 96.8 ± 6.8 98.8 30.0 100.8 - 1,842
Non-Hispanic Black 359 94.8 ± 9.2 97.7 33.2 100.4 - 359
Hispanic 557 96.7 ± 5.5 98.4 51.8 100.4 - 557
Asian 112 96.7 ± 7.9 99.0 49.2 100.3 - 112
Other 142 96.4 ± 7.7 98.6 38.2 100.3 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Sleep Maintenance Efficiency (%): the proportion of sleep duration in sleep period
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 2,332 96.3 ± 7.1 98.5 25.7 101.0 - 2,332
Non-Hispanic White 1,494 97.0 ± 5.9 98.7 33.0 101.0 - 1,494
Non-Hispanic Black 247 93.9 ± 9.8 97.5 33.3 100.4 - 247
Hispanic 397 95.0 ± 9.0 97.8 25.7 100.3 - 397
Asian 84 95.9 ± 7.8 98.7 54.4 100.4 - 84
Other 110 96.3 ± 5.6 98.3 64.7 100.3 - 110