Name

ahi_c0h4a

Label

Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep

Calculation
ahi_c0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + urbpa4 + uropa4 + unrbpa4 + unropa4 + carbp + carop + canbp + canop ) / slpprdp
Units
events per hour
Type
numeric
MESA Exam Number vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Exam 5 2,057 16.1 ± 13.7 12.3 0.0 93.3 180 2,237
Participant Age at MESA Sleep Visit vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 16.1 ± 13.7 12.3 0.0 93.3 180 2,237
54.0 to 62.0 years 520 14.7 ± 14.3 10.2 0.0 93.3 40 560
62.0 to 69.0 years 536 16.6 ± 14.1 12.5 0.1 82.7 23 559
69.0 to 77.0 years 511 16.5 ± 13.5 12.8 0.3 79.5 48 559
77.0 to 95.0 years 490 16.6 ± 12.6 13.6 0.0 90.9 69 559
Gender vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 16.1 ± 13.7 12.3 0.0 93.3 180 2,237
Female 1,103 13.3 ± 12.4 9.8 0.0 93.3 95 1,198
Male 954 19.3 ± 14.4 15.8 0.3 90.9 85 1,039
Race/ethnicity vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 2,057 16.1 ± 13.7 12.3 0.0 93.3 180 2,237
White, Caucasian 743 15.9 ± 13.7 12.0 0.0 82.7 87 830
Chinese American 250 15.8 ± 13.0 12.8 0.0 65.9 15 265
Black, African-American 573 14.9 ± 13.8 10.9 0.1 93.3 43 616
Hispanic 491 17.8 ± 13.7 14.2 0.0 90.9 35 526