Name
hi_pb_hp5x0u
Label
Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and with 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 (Supine): (Hypopneas with > 50% flow reduction and with 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 2.0 ± 3.8 0.8 0.0 67.5 - 3,012
Visit 3 2,332 2.4 ± 5.0 0.8 0.0 72.9 - 2,332
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and with 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 2.0 ± 3.8 0.8 0.0 67.5 - 3,012
Non-Hispanic White 1,842 2.1 ± 3.8 0.9 0.0 58.6 - 1,842
Non-Hispanic Black 359 2.1 ± 5.2 0.5 0.0 67.5 - 359
Hispanic 557 1.8 ± 3.3 0.7 0.0 32.4 - 557
Asian 112 2.2 ± 3.0 1.2 0.0 19.7 - 112
Other 142 1.6 ± 3.0 0.7 0.0 23.1 - 142
Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g vs Hypopnea Index (Supine): (Hypopneas with > 50% flow reduction and with 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 2.4 ± 5.0 0.8 0.0 72.9 - 2,332
Non-Hispanic White 1,494 2.5 ± 5.5 0.8 0.0 72.9 - 1,494
Non-Hispanic Black 247 2.3 ± 5.2 0.6 0.0 46.7 - 247
Hispanic 397 2.0 ± 3.7 0.7 0.0 30.0 - 397
Asian 84 2.5 ± 2.6 1.4 0.0 10.7 - 84
Other 110 2.3 ± 3.7 0.5 0.0 16.4 - 110