Name

cai4pa

Label

Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation or arousal] per hour of sleep

Calculation
cai4pa = 60 * ( carba4 + caroa4 + canba4 + canoa4 ) / slpprdp
Units
events per hour
Type
numeric
Visit vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation or arousal] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 5 714 0.3 ± 2.0 0.0 0.0 46.9 21 735
Age at time of visit vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 639 0.3 ± 2.1 0.0 0.0 46.9 19 658
5-14 yrs old 62 0.1 ± 0.2 0.0 0.0 0.7 2 64
15-24 yrs old 110 0.08 ± 0.2 0.0 0.0 1.1 2 112
25-34 yrs old 62 0.4 ± 0.9 0.0 0.0 4.5 - 62
35-44 years 93 0.3 ± 1.7 0.0 0.0 16.6 5 98
45-54 years 142 0.2 ± 1.1 0.0 0.0 13.0 6 148
55-64 years 81 0.3 ± 1.0 0.0 0.0 7.6 3 84
65-74 years 56 0.4 ± 0.9 0.0 0.0 4.3 1 57
75-84 years 31 0.7 ± 1.5 0.0 0.0 6.6 - 31
85 years or older 2 24.2 ± 32.1 24.2 1.6 46.9 - 2
Sex vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 714 0.3 ± 2.0 0.0 0.0 46.9 21 735
Female 396 0.1 ± 0.4 0.0 0.0 5.0 10 406
Male 318 0.6 ± 3.0 0.0 0.0 46.9 11 329
Race vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 714 0.3 ± 2.0 0.0 0.0 46.9 21 735
White 295 0.5 ± 3.0 0.0 0.0 46.9 9 304
Black 397 0.2 ± 0.8 0.0 0.0 13.0 12 409
Other 22 0.09 ± 0.2 0.0 0.0 0.7 - 22