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Age

MESA Exam Number vs Average Blue Light Time Above 1000 Microwatts Per Square Centimeter Threshold Per Weekday Day (Minutes)
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,151 5.2 ± 8.6 1.7 0.0 75.6 86 2,237
Participant Age at MESA Sleep Visit vs Average Blue Light Time Above 1000 Microwatts Per Square Centimeter Threshold Per Weekday Day (Minutes)
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 5.2 ± 8.6 1.7 0.0 75.6 86 2,237
54.0 to 62.0 years 544 5.9 ± 10.0 1.8 0.0 75.6 16 560
62.0 to 69.0 years 538 5.6 ± 8.4 2.0 0.0 54.2 21 559
69.0 to 77.0 years 529 5.7 ± 8.9 2.3 0.0 68.3 30 559
77.0 to 95.0 years 540 3.5 ± 6.3 0.8 0.0 62.3 19 559
Gender vs Average Blue Light Time Above 1000 Microwatts Per Square Centimeter Threshold Per Weekday Day (Minutes)
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 5.2 ± 8.6 1.7 0.0 75.6 86 2,237
Female 1,155 3.5 ± 5.7 1.2 0.0 62.3 43 1,198
Male 996 7.1 ± 10.7 2.6 0.0 75.6 43 1,039
Race/ethnicity vs Average Blue Light Time Above 1000 Microwatts Per Square Centimeter Threshold Per Weekday Day (Minutes)
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,151 5.2 ± 8.6 1.7 0.0 75.6 86 2,237
White, Caucasian 806 6.0 ± 9.7 2.3 0.0 75.6 24 830
Chinese American 244 3.9 ± 6.7 1.2 0.0 52.4 21 265
Black, African-American 597 5.2 ± 8.5 1.7 0.0 61.9 19 616
Hispanic 504 4.4 ± 7.4 1.2 0.0 50.3 22 526