Race/Ethnicity

MESA exam number vs Average daily number of naps (with some sleep are counted) in weekdays from actigraphy
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,150 1.0 ± 1.0 0.8 0.0 10.0 87 2,237
Participant Age at MESA Sleep Visit vs Average daily number of naps (with some sleep are counted) in weekdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,150 1.0 ± 1.0 0.8 0.0 10.0 87 2,237
54.0 to 62.0 years 544 0.7 ± 0.8 0.5 0.0 5.3 16 560
62.0 to 69.0 years 537 0.8 ± 0.9 0.5 0.0 7.5 22 559
69.0 to 77.0 years 531 1.0 ± 1.0 0.8 0.0 8.8 28 559
77.0 to 95.0 years 538 1.4 ± 1.2 1.0 0.0 10.0 21 559
Gender of the participant vs Average daily number of naps (with some sleep are counted) in weekdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,150 1.0 ± 1.0 0.8 0.0 10.0 87 2,237
Female 1,155 0.9 ± 1.0 0.8 0.0 8.8 43 1,198
Male 995 1.1 ± 1.1 0.8 0.0 10.0 44 1,039
Race/ethnicity of the participant vs Average daily number of naps (with some sleep are counted) in weekdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,150 1.0 ± 1.0 0.8 0.0 10.0 87 2,237
White, Caucasian 806 0.8 ± 0.9 0.5 0.0 7.5 24 830
Chinese American 244 1.0 ± 0.9 0.8 0.0 4.8 21 265
Black, African-American 597 1.1 ± 1.1 1.0 0.0 10.0 19 616
Hispanic 503 1.0 ± 1.1 0.8 0.0 8.8 23 526