Histogram

MESA exam number vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,151 8.3 ± 12.3 3.6 0.0 140.2 86 2,237
Participant Age at MESA Sleep Visit vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 8.3 ± 12.3 3.6 0.0 140.2 86 2,237
54.0 to 62.0 years 544 9.9 ± 15.2 4.2 0.0 140.2 16 560
62.0 to 69.0 years 537 8.7 ± 11.4 4.2 0.0 78.4 22 559
69.0 to 77.0 years 532 8.7 ± 12.0 3.9 0.0 81.1 27 559
77.0 to 95.0 years 538 5.8 ± 9.6 2.1 0.0 80.4 21 559
Gender of the participant vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 8.3 ± 12.3 3.6 0.0 140.2 86 2,237
Female 1,155 5.8 ± 8.3 2.8 0.0 80.4 43 1,198
Male 996 11.1 ± 15.3 5.3 0.0 140.2 43 1,039
Race/ethnicity of the participant vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 8.3 ± 12.3 3.6 0.0 140.2 86 2,237
White, Caucasian 806 9.5 ± 14.0 4.2 0.0 140.2 24 830
Chinese American 244 6.7 ± 9.6 3.6 0.0 64.9 21 265
Black, African-American 597 8.1 ± 12.0 3.4 0.0 91.5 19 616
Hispanic 504 7.3 ± 10.7 2.9 0.0 76.5 22 526