ahi_ap0nhp3x5x4nhp5x3n_f1t3 oahi_oa0nhp3x4n_f1t3
Name
oahi_oa0nhp3x3n_f1t3
Label
Obstructive Apnea-Hypopnea Index: (All obstructive apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and >= 3% 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
oahi_o0h3 oahi_oa0uhp3x3u_f1t3 oahi_oa3uhp3x3u
A4b. Visit of Sleep Study vs Obstructive Apnea-Hypopnea Index: (All obstructive apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and >= 3% 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 0.9 ± 2.2 0.3 0.0 44.3 - 3,012
Visit 3 2,332 1.8 ± 4.6 0.6 0.0 147.7 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Obstructive Apnea-Hypopnea Index: (All obstructive apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and >= 3% 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 0.9 ± 2.2 0.3 0.0 44.3 - 3,012
Non-Hispanic White 1,842 0.9 ± 2.0 0.3 0.0 34.8 - 1,842
Non-Hispanic Black 359 1.2 ± 3.7 0.3 0.0 44.3 - 359
Hispanic 557 0.7 ± 1.6 0.2 0.0 18.2 - 557
Asian 112 1.0 ± 2.0 0.3 0.0 13.3 - 112
Other 142 0.9 ± 2.1 0.2 0.0 19.1 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Obstructive Apnea-Hypopnea Index: (All obstructive apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and >= 3% 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 1.8 ± 4.6 0.6 0.0 147.7 - 2,332
Non-Hispanic White 1,494 1.8 ± 5.2 0.6 0.0 147.7 - 1,494
Non-Hispanic Black 247 2.3 ± 3.9 0.9 0.0 24.2 - 247
Hispanic 397 1.5 ± 2.7 0.5 0.0 22.5 - 397
Asian 84 2.1 ± 2.9 0.7 0.0 15.9 - 84
Other 110 2.1 ± 3.0 1.0 0.0 15.5 - 110