Histogram

MESA exam number vs Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,057 16.8 ± 21.1 9.1 0.0 125.5 180 2,237
Participant Age at MESA Sleep Visit vs Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without 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 16.8 ± 21.1 9.1 0.0 125.5 180 2,237
54.0 to 62.0 years 525 15.8 ± 21.7 6.2 0.0 125.5 35 560
62.0 to 69.0 years 532 16.8 ± 20.6 10.0 0.0 120.0 27 559
69.0 to 77.0 years 510 18.4 ± 22.7 10.0 0.0 120.0 49 559
77.0 to 95.0 years 490 16.4 ± 19.0 10.3 0.0 100.7 69 559
Gender of the participant vs Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without 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 16.8 ± 21.1 9.1 0.0 125.5 180 2,237
Female 1,103 11.8 ± 17.7 4.8 0.0 125.5 95 1,198
Male 954 22.7 ± 23.1 16.1 0.0 120.0 85 1,039
Race/ethnicity of the participant vs Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without 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 16.8 ± 21.1 9.1 0.0 125.5 180 2,237
White, Caucasian 743 17.8 ± 22.3 10.0 0.0 120.0 87 830
Chinese American 250 18.2 ± 19.6 11.5 0.0 96.0 15 265
Black, African-American 573 13.5 ± 19.2 6.1 0.0 125.5 43 616
Hispanic 491 18.6 ± 21.7 11.3 0.0 120.0 35 526