Name
ahi_o0h4a
Label
Obstructive Apnea-Hypopnea Index : (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Description

Calculated - Summary metric of sleep disordered breathing events.

Calculation
ahi_o0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + oarbp + oarop + oanbp + oanop + urbpa4 + uropa4 + unrbpa4 + unropa4) / slpprdp
Units
events per hour
Type
numeric
Visit vs Obstructive Apnea-Hypopnea Index : (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 5 732 10.1 ± 15.1 3.7 0.0 94.3 3 735
Participant's age (category) vs Obstructive Apnea-Hypopnea Index : (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 10.0 ± 14.7 3.8 0.0 94.3 3 658
5-14 yrs old 64 1.3 ± 3.2 0.5 0.0 20.9 - 64
15-24 yrs old 112 2.7 ± 4.7 1.4 0.0 38.8 - 112
25-34 yrs old 62 9.3 ± 17.4 2.8 0.0 94.3 - 62
35-44 years 97 12.7 ± 18.3 5.0 0.0 86.8 1 98
45-54 years 146 11.7 ± 14.3 6.6 0.2 86.1 2 148
55-64 years 84 12.9 ± 13.2 8.3 0.2 55.4 - 84
65-74 years 57 17.1 ± 16.2 10.1 0.7 58.3 - 57
75-84 years 31 19.0 ± 19.5 12.5 0.7 82.1 - 31
85 years or older 2 9.2 ± 3.0 9.2 7.1 11.3 - 2
Participant's sex vs Obstructive Apnea-Hypopnea Index : (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 10.1 ± 15.1 3.7 0.0 94.3 3 735
Female 403 7.5 ± 11.6 2.9 0.0 76.5 3 406
Male 329 13.3 ± 17.9 6.0 0.0 94.3 - 329
Participant's race vs Obstructive Apnea-Hypopnea Index : (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 10.1 ± 15.1 3.7 0.0 94.3 3 735
White 302 9.9 ± 14.6 3.6 0.0 94.3 2 304
Black 408 10.6 ± 15.7 3.9 0.0 86.1 1 409
More than one race 22 3.7 ± 7.5 0.9 0.0 35.3 - 22