Name
avgbluetalt5
Label
Average blue light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in all days from actigraphy
Units
minutes (min)
Type
numeric
MESA exam number vs Average blue 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 6.6 ± 10.2 2.6 0.0 140.1 86 2,237
Participant Age at MESA Sleep Visit vs Average blue 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 6.6 ± 10.2 2.6 0.0 140.1 86 2,237
54.0 to 62.0 years 544 8.1 ± 12.9 3.2 0.0 140.1 16 560
62.0 to 69.0 years 537 7.1 ± 9.6 3.1 0.0 58.5 22 559
69.0 to 77.0 years 532 6.8 ± 9.8 3.0 0.0 63.2 27 559
77.0 to 95.0 years 538 4.5 ± 7.4 1.6 0.0 78.2 21 559
Gender of the participant vs Average blue 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 6.6 ± 10.2 2.6 0.0 140.1 86 2,237
Female 1,155 4.8 ± 7.2 2.0 0.0 78.2 43 1,198
Male 996 8.8 ± 12.5 3.7 0.0 140.1 43 1,039
Race/ethnicity of the participant vs Average blue 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 6.6 ± 10.2 2.6 0.0 140.1 86 2,237
White, Caucasian 806 7.6 ± 11.6 3.1 0.0 140.1 24 830
Chinese American 244 5.2 ± 8.1 2.3 0.0 51.8 21 265
Black, African-American 597 6.7 ± 10.1 2.8 0.0 69.5 19 616
Hispanic 504 5.6 ± 8.7 1.7 0.0 56.4 22 526