Name
oai_oa4n_f1t3
Label
Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
Description

Calculated - Summary metric of sleep disordered breathing events.

Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)

Units
events per hour
Type
numeric
A4b. Visit of Sleep Study vs Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
N Mean StdDev Median Min Max Unknown Total
Visit 1 3,012 0.03 ± 0.3 0.0 0.0 13.5 - 3,012
Visit 3 2,332 0.09 ± 2.0 0.0 0.0 95.1 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 3,012 0.03 ± 0.3 0.0 0.0 13.5 - 3,012
Non-Hispanic White 1,842 0.02 ± 0.2 0.0 0.0 7.6 - 1,842
Non-Hispanic Black 359 0.09 ± 0.9 0.0 0.0 13.5 - 359
Hispanic 557 0.02 ± 0.08 0.0 0.0 0.8 - 557
Asian 112 0.02 ± 0.09 0.0 0.0 0.7 - 112
Other 142 0.02 ± 0.1 0.0 0.0 0.8 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 2,332 0.09 ± 2.0 0.0 0.0 95.1 - 2,332
Non-Hispanic White 1,494 0.1 ± 2.5 0.0 0.0 95.1 - 1,494
Non-Hispanic Black 247 0.1 ± 0.8 0.0 0.0 10.9 - 247
Hispanic 397 0.05 ± 0.3 0.0 0.0 5.7 - 397
Asian 84 0.07 ± 0.2 0.0 0.0 1.2 - 84
Other 110 0.03 ± 0.09 0.0 0.0 0.6 - 110