Name

oai4p

Label

Obstructive Apnea Index >= 4% - number of [obstructive apneas with >= 4% oxygen desaturation] per hour of sleep

Calculation
oai4p = 60 * ( oarbp4 + oarop4 + oanbp4 + oanop4 ) / slpprdp
Units
events per hour
Type
numeric
Visit vs Obstructive Apnea Index >= 4% - number of [obstructive apneas with >= 4% oxygen desaturation] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 5 636 3.0 ± 9.6 0.0 0.0 79.7 99 735
Age at time of visit vs Obstructive Apnea Index >= 4% - number of [obstructive apneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 567 2.9 ± 9.4 0.0 0.0 79.7 91 658
5-14 yrs old 63 0.3 ± 2.0 0.0 0.0 15.8 1 64
15-24 yrs old 109 0.2 ± 0.9 0.0 0.0 7.8 3 112
25-34 yrs old 57 4.0 ± 12.5 0.0 0.0 66.6 5 62
35-44 years 86 3.0 ± 6.6 0.2 0.0 35.2 12 98
45-54 years 111 4.0 ± 13.0 0.2 0.0 79.3 37 148
55-64 years 64 4.9 ± 12.9 0.5 0.0 79.7 20 84
65-74 years 47 3.4 ± 5.0 0.9 0.0 20.0 10 57
75-84 years 28 7.5 ± 12.6 1.9 0.0 46.2 3 31
85 years or older 2 3.3 ± 3.8 3.3 0.7 6.0 - 2
Sex vs Obstructive Apnea Index >= 4% - number of [obstructive apneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 636 3.0 ± 9.6 0.0 0.0 79.7 99 735
Female 367 1.3 ± 5.5 0.0 0.0 75.4 39 406
Male 269 5.3 ± 13.0 0.2 0.0 79.7 60 329
Race vs Obstructive Apnea Index >= 4% - number of [obstructive apneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 636 3.0 ± 9.6 0.0 0.0 79.7 99 735
White 255 3.1 ± 9.6 0.0 0.0 76.0 49 304
Black 362 3.1 ± 9.8 0.1 0.0 79.7 47 409
Other 19 0.1 ± 0.5 0.0 0.0 2.0 3 22