Age

MESA exam number vs Average whte light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,151 47.5 ± 50.9 32.9 0.0 471.0 86 2,237
Participant Age at MESA Sleep Visit vs Average whte light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 47.5 ± 50.9 32.9 0.0 471.0 86 2,237
54.0 to 62.0 years 544 52.7 ± 58.7 36.8 0.0 471.0 16 560
62.0 to 69.0 years 537 48.4 ± 45.5 36.5 0.0 254.8 22 559
69.0 to 77.0 years 532 50.8 ± 52.5 34.3 0.0 306.8 27 559
77.0 to 95.0 years 538 38.1 ± 44.3 23.4 0.0 390.3 21 559
Gender of the participant vs Average whte light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 47.5 ± 50.9 32.9 0.0 471.0 86 2,237
Female 1,155 38.4 ± 38.3 27.8 0.0 322.6 43 1,198
Male 996 58.1 ± 60.7 40.7 0.0 471.0 43 1,039
Race/ethnicity of the participant vs Average whte light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in weekdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 47.5 ± 50.9 32.9 0.0 471.0 86 2,237
White, Caucasian 806 52.4 ± 52.3 39.3 0.0 318.0 24 830
Chinese American 244 43.8 ± 49.6 30.4 0.0 322.6 21 265
Black, African-American 597 45.1 ± 51.2 29.6 0.0 471.0 19 616
Hispanic 504 44.4 ± 48.4 28.6 0.0 274.8 22 526