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Age

Limb Signal Quality from type II polysomnography vs MESA exam number
Exam 5
Total 2,237
Signal good for < 25% of sleep time 2
Signal good for 25-49% of sleep time 6
Signal good for 50-74% of sleep time 35
Signal good for 75-94% of sleep time 58
Signal good >= 95% of sleep time 1,956
Unknown 180
Limb Signal Quality from type II polysomnography vs Participant Age at MESA Sleep Visit
Exam 5
54.0 to 62.0 years 62.0 to 69.0 years 69.0 to 77.0 years 77.0 to 95.0 years Total
Total 560 559 559 559 2,237
Signal good for < 25% of sleep time - 1 - 1 2
Signal good for 25-49% of sleep time 1 1 1 3 6
Signal good for 50-74% of sleep time 9 10 6 10 35
Signal good for 75-94% of sleep time 7 10 18 23 58
Signal good >= 95% of sleep time 508 510 485 453 1,956
Unknown 35 27 49 69 180
Limb Signal Quality from type II polysomnography vs Gender of the participant
Exam 5
Female Male Total
Total 1,198 1,039 2,237
Signal good for < 25% of sleep time 2 - 2
Signal good for 25-49% of sleep time 5 1 6
Signal good for 50-74% of sleep time 18 17 35
Signal good for 75-94% of sleep time 26 32 58
Signal good >= 95% of sleep time 1,052 904 1,956
Unknown 95 85 180
Limb Signal Quality from type II polysomnography vs Race/ethnicity of the participant
Exam 5
White, Caucasian Chinese American Black, African-American Hispanic Total
Total 830 265 616 526 2,237
Signal good for < 25% of sleep time 2 - - - 2
Signal good for 25-49% of sleep time 1 1 3 1 6
Signal good for 50-74% of sleep time 12 4 11 8 35
Signal good for 75-94% of sleep time 25 3 13 17 58
Signal good >= 95% of sleep time 703 242 546 465 1,956
Unknown 87 15 43 35 180