Histogram

MESA exam number vs Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,057 0.5 ± 3.0 0.0 0.0 60.0 180 2,237
Participant Age at MESA Sleep Visit vs Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 0.5 ± 3.0 0.0 0.0 60.0 180 2,237
54.0 to 62.0 years 525 0.5 ± 2.9 0.0 0.0 48.8 35 560
62.0 to 69.0 years 532 0.4 ± 2.3 0.0 0.0 34.3 27 559
69.0 to 77.0 years 510 0.5 ± 3.1 0.0 0.0 60.0 49 559
77.0 to 95.0 years 490 0.8 ± 3.6 0.0 0.0 40.0 69 559
Gender of the participant vs Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 0.5 ± 3.0 0.0 0.0 60.0 180 2,237
Female 1,103 0.1 ± 0.7 0.0 0.0 13.9 95 1,198
Male 954 1.0 ± 4.3 0.0 0.0 60.0 85 1,039
Race/ethnicity of the participant vs Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 0.5 ± 3.0 0.0 0.0 60.0 180 2,237
White, Caucasian 743 0.6 ± 3.3 0.0 0.0 48.8 87 830
Chinese American 250 0.4 ± 1.4 0.0 0.0 12.5 15 265
Black, African-American 573 0.4 ± 2.4 0.0 0.0 34.3 43 616
Hispanic 491 0.6 ± 3.7 0.0 0.0 60.0 35 526