ahi_c0h3a ahi_c0h4a
Name
ahi_c0h4
Label
Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Calculation
ahi_c0h4 = 60 * (hrembp4 + hrop4 + hnrbp4 + hnrop4 + carbp + carop + canbp + canop) / slpprdp
Units
events per hour
Type
numeric
Visit number vs Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 8 461 7.7 ± 9.4 5.0 0.0 74.9 - 461
Age (categorical) vs Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 455 7.5 ± 8.8 5.0 0.0 61.0 - 455
75-84 years 325 7.0 ± 8.5 4.9 0.0 61.0 - 325
85 years or older 130 8.6 ± 9.3 5.3 0.0 44.2 - 130
Gender vs Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 461 7.7 ± 9.4 5.0 0.0 74.9 - 461
Female 461 7.7 ± 9.4 5.0 0.0 74.9 - 461