Race/Ethnicity

MESA exam number vs Total number of days with naps in the entire actigraphy recording period in all days from actigraphy
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,151 3.5 ± 2.1 3.0 0.0 9.0 86 2,237
Participant Age at MESA Sleep Visit vs Total number of days with naps in the entire actigraphy recording period in all days from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 3.5 ± 2.1 3.0 0.0 9.0 86 2,237
54.0 to 62.0 years 544 2.9 ± 2.0 3.0 0.0 8.0 16 560
62.0 to 69.0 years 537 3.1 ± 2.1 3.0 0.0 8.0 22 559
69.0 to 77.0 years 532 3.6 ± 2.0 4.0 0.0 9.0 27 559
77.0 to 95.0 years 538 4.2 ± 2.1 5.0 0.0 8.0 21 559
Gender of the participant vs Total number of days with naps in the entire actigraphy recording period in all days from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 3.5 ± 2.1 3.0 0.0 9.0 86 2,237
Female 1,155 3.3 ± 2.1 3.0 0.0 9.0 43 1,198
Male 996 3.6 ± 2.1 4.0 0.0 8.0 43 1,039
Race/ethnicity of the participant vs Total number of days with naps in the entire actigraphy recording period in all days from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 3.5 ± 2.1 3.0 0.0 9.0 86 2,237
White, Caucasian 806 3.2 ± 2.1 3.0 0.0 9.0 24 830
Chinese American 244 3.8 ± 2.1 4.0 0.0 8.0 21 265
Black, African-American 597 3.7 ± 2.0 4.0 0.0 8.0 19 616
Hispanic 504 3.3 ± 2.1 3.0 0.0 8.0 22 526