ahi_o0h4a oai0p
Name
cai0p
Label
Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Description

Calculated - Summary metric of sleep disordered breathing events

Calculation
cai0p = 60 * ( carbp + carop + canbp + canop ) / slpprdp
Units
events per hour
Type
numeric
Tags
cai_ca0u_f1t2
Visit number vs Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 8 461 0.4 ± 3.0 0.0 0.0 59.3 - 461
Age (categorical) vs Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 455 0.4 ± 3.0 0.0 0.0 59.3 - 455
75-84 years 325 0.5 ± 3.5 0.0 0.0 59.3 - 325
85 years or older 130 0.4 ± 1.2 0.0 0.0 10.9 - 130
Gender vs Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Visit 8
N Mean StdDev Median Min Max Unknown Total
Total 461 0.4 ± 3.0 0.0 0.0 59.3 - 461
Female 461 0.4 ± 3.0 0.0 0.0 59.3 - 461