Name

avgmainteffnw5

Label

Average daily sleep maintenance efficiency in non-workdays from actigraphy

Description

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.

Units

percent (%)

Type

numeric

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	2,077	91.3	± 3.6	92.0	70.9	99.9	160	2,237
54.0 to 62.0 years	519	91.0	± 3.8	91.5	72.3	98.2	41	560
62.0 to 69.0 years	521	91.3	± 3.5	92.1	74.5	99.9	38	559
69.0 to 77.0 years	514	91.2	± 3.7	92.1	76.3	97.9	45	559
77.0 to 95.0 years	523	91.6	± 3.6	92.1	70.9	98.1	36	559

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	2,077	91.3	± 3.6	92.0	70.9	99.9	160	2,237
Female	1,123	91.8	± 3.3	92.2	70.9	99.9	75	1,198
Male	954	90.8	± 4.0	91.5	72.3	99.2	85	1,039

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	2,077	91.3	± 3.6	92.0	70.9	99.9	160	2,237
White, Caucasian	776	91.9	± 3.4	92.5	72.8	99.9	54	830
Chinese American	236	91.2	± 3.7	91.9	75.9	97.1	29	265
Black, African-American	581	90.8	± 4.0	91.5	70.9	99.2	35	616
Hispanic	484	91.0	± 3.5	91.5	73.8	97.0	42	526

Multi-Ethnic Study of Atherosclerosis