ahi_ap0nhp3x0n_f1t3 ahi_ap3nhp3x3n_f1t3
Name
ahi_ap2nhp3x2n_f1t3
Label
Apnea-Hypopnea Index: (All apneas with >= 2% oxygen desaturation + hypopneas with > 30% flow reduction and with >= 2% 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
Tags
ahi_a2h2 ahi_ap2uhp3x2u ahi_ap2uhp3x2u_f1t3
A4b. Visit of Sleep Study vs Apnea-Hypopnea Index: (All apneas with >= 2% oxygen desaturation + hypopneas with > 30% flow reduction and with >= 2% 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 2.7 ± 4.0 1.5 0.0 61.5 - 3,012
Visit 3 2,332 4.4 ± 6.1 2.7 0.0 123.9 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Apnea-Hypopnea Index: (All apneas with >= 2% oxygen desaturation + hypopneas with > 30% flow reduction and with >= 2% 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 2.7 ± 4.0 1.5 0.0 61.5 - 3,012
Non-Hispanic White 1,842 2.9 ± 3.6 1.8 0.0 41.5 - 1,842
Non-Hispanic Black 359 2.9 ± 5.8 1.1 0.0 61.5 - 359
Hispanic 557 2.2 ± 3.5 1.1 0.0 43.1 - 557
Asian 112 2.5 ± 3.8 1.2 0.0 27.0 - 112
Other 142 2.6 ± 5.4 1.3 0.0 59.9 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Apnea-Hypopnea Index: (All apneas with >= 2% oxygen desaturation + hypopneas with > 30% flow reduction and with >= 2% 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 4.4 ± 6.1 2.7 0.0 123.9 - 2,332
Non-Hispanic White 1,494 4.5 ± 6.6 2.8 0.0 123.9 - 1,494
Non-Hispanic Black 247 4.6 ± 5.7 2.8 0.0 36.9 - 247
Hispanic 397 3.6 ± 4.5 2.1 0.0 36.5 - 397
Asian 84 4.7 ± 4.7 2.9 0.0 22.6 - 84
Other 110 4.6 ± 4.9 2.9 0.0 24.5 - 110