Name

cai4p

Label

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

Calculation
cai4p = 60 * ( carbp4 + carop4 + canbp4 + canop4 ) / slpprdp
Units
events per hour
Type
numeric
Visit vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 5 722 0.3 ± 2.0 0.0 0.0 46.5 13 735
Age at time of visit vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 645 0.3 ± 2.1 0.0 0.0 46.5 13 658
5-14 yrs old 63 0.07 ± 0.2 0.0 0.0 0.7 1 64
15-24 yrs old 111 0.06 ± 0.2 0.0 0.0 1.1 1 112
25-34 yrs old 62 0.3 ± 0.7 0.0 0.0 3.4 - 62
35-44 years 95 0.3 ± 1.7 0.0 0.0 16.3 3 98
45-54 years 143 0.2 ± 0.9 0.0 0.0 9.3 5 148
55-64 years 82 0.3 ± 0.9 0.0 0.0 7.4 2 84
65-74 years 56 0.3 ± 0.7 0.0 0.0 3.3 1 57
75-84 years 31 0.6 ± 1.5 0.0 0.0 6.4 - 31
85 years or older 2 23.7 ± 32.3 23.7 0.9 46.5 - 2
Sex vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 722 0.3 ± 2.0 0.0 0.0 46.5 13 735
Female 400 0.09 ± 0.4 0.0 0.0 5.0 6 406
Male 322 0.5 ± 2.9 0.0 0.0 46.5 7 329
Race vs Central Apnea Index >= 4% - number of [central apneas with >= 4% oxygen desaturation] per hour of sleep
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 722 0.3 ± 2.0 0.0 0.0 46.5 13 735
White 297 0.5 ± 3.0 0.0 0.0 46.5 7 304
Black 403 0.2 ± 0.6 0.0 0.0 9.3 6 409
Other 22 0.07 ± 0.2 0.0 0.0 0.7 - 22