ahi_ap0nhp3x3n_f1t3 ahi_ap0nhp3x5x4nhp5x3n_f1t3
Name
ahi_ap0nhp3x4n_f1t3
Label
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
Description

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (alternative) Berry RB et al. 2012 (PubMed ID:23066376), and (2) AASM 2015 (acceptable) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.].

Search for all AHI variables consistent with the same clinical guidelines within this dataset

Units
events per hour
Type
numeric
Tags
aasm15_acceptable ahi_a0h4 ahi_ap0uhp3x4u ahi_ap0uhp3x4u_f1t3
A4b. Visit of Sleep Study vs Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and 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 0.4 ± 1.3 0.1 0.0 30.7 - 3,012
Visit 3 2,332 0.9 ± 3.7 0.2 0.0 146.6 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and 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 0.4 ± 1.3 0.1 0.0 30.7 - 3,012
Non-Hispanic White 1,842 0.4 ± 1.2 0.1 0.0 26.2 - 1,842
Non-Hispanic Black 359 0.7 ± 2.5 0.1 0.0 30.7 - 359
Hispanic 557 0.3 ± 0.8 0.1 0.0 6.9 - 557
Asian 112 0.5 ± 1.1 0.1 0.0 7.1 - 112
Other 142 0.3 ± 0.8 0.1 0.0 5.5 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and 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 0.9 ± 3.7 0.2 0.0 146.6 - 2,332
Non-Hispanic White 1,494 0.9 ± 4.4 0.2 0.0 146.6 - 1,494
Non-Hispanic Black 247 1.2 ± 2.7 0.3 0.0 17.4 - 247
Hispanic 397 0.7 ± 1.6 0.2 0.0 14.6 - 397
Asian 84 1.0 ± 1.7 0.3 0.0 9.2 - 84
Other 110 1.0 ± 1.9 0.3 0.0 11.8 - 110