Name
hi_po_hp5x0u
Label
Hypopnea Index (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or witout arousal / hour of sleep
Description

Calculated - Summary metric of sleep disordered breathing events. Hypopneas are defined based on American Academy of Sleep Medicine (AASM) Chicago 1999 standard. Sleep 1999 (PubMed ID:10450601)

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

Units
events per hour
Type
numeric
A4b. Visit of Sleep Study vs Hypopnea Index (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or witout arousal / hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 1 3,012 1.2 ± 2.1 0.5 0.0 33.0 - 3,012
Visit 3 2,332 1.5 ± 3.0 0.6 0.0 52.9 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Hypopnea Index (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or witout arousal / hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 3,012 1.2 ± 2.1 0.5 0.0 33.0 - 3,012
Non-Hispanic White 1,842 1.2 ± 2.0 0.6 0.0 23.3 - 1,842
Non-Hispanic Black 359 1.4 ± 2.8 0.5 0.0 33.0 - 359
Hispanic 557 1.1 ± 2.1 0.5 0.0 21.3 - 557
Asian 112 0.9 ± 1.4 0.4 0.0 8.0 - 112
Other 142 0.9 ± 1.5 0.4 0.0 10.4 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Hypopnea Index (Non-Supine): Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or witout arousal / hour of sleep
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 2,332 1.5 ± 3.0 0.6 0.0 52.9 - 2,332
Non-Hispanic White 1,494 1.6 ± 3.3 0.6 0.0 52.9 - 1,494
Non-Hispanic Black 247 1.6 ± 2.6 0.5 0.0 17.3 - 247
Hispanic 397 1.3 ± 2.4 0.5 0.0 27.1 - 397
Asian 84 1.6 ± 2.5 0.6 0.0 14.9 - 84
Other 110 1.2 ± 1.6 0.7 0.0 8.6 - 110