Name
cai_ca4u
Label
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
Description

Calculated - Summary metric of sleep disordered breathing events

Units
events per hour
Type
numeric
Labels
A4b. Visit of Sleep Study vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 1 3,012 0.01 ± 0.06 0.0 0.0 1.4 - 3,012
Visit 3 2,332 0.02 ± 0.3 0.0 0.0 14.1 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 3,012 0.01 ± 0.06 0.0 0.0 1.4 - 3,012
Non-Hispanic White 1,842 0.01 ± 0.07 0.0 0.0 1.4 - 1,842
Non-Hispanic Black 359 0.01 ± 0.06 0.0 0.0 0.7 - 359
Hispanic 557 0.008 ± 0.04 0.0 0.0 0.4 - 557
Asian 112 0.004 ± 0.02 0.0 0.0 0.1 - 112
Other 142 0.008 ± 0.04 0.0 0.0 0.3 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 2,332 0.02 ± 0.3 0.0 0.0 14.1 - 2,332
Non-Hispanic White 1,494 0.02 ± 0.4 0.0 0.0 14.1 - 1,494
Non-Hispanic Black 247 0.009 ± 0.04 0.0 0.0 0.3 - 247
Hispanic 397 0.008 ± 0.04 0.0 0.0 0.3 - 397
Asian 84 0.02 ± 0.05 0.0 0.0 0.3 - 84
Other 110 0.01 ± 0.04 0.0 0.0 0.2 - 110