Name
oahi_oa0uhp3x4u
Label
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
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

Calculation
oahi_oa0uhp3x4u = 60 * (hrembp4 + hrop4 + hnrbp4 + hnrop4 + urbp4 + urop4 + unrbp4 + unrop4 + oarbp + oarop + oanbp + oanop) / ttldursp
Units
events per hour
Type
numeric
Visit number vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
N Mean StdDev Median Min Max Unknown Total
Baseline 49 39.6 ± 27.4 30.2 0.3 122.8 - 49
9-Month Followup 43 28.0 ± 27.5 17.3 1.5 107.2 - 43
18-Month Followup 40 26.7 ± 21.4 20.4 2.0 78.8 - 40
Randomized treatment arm vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 39.6 ± 27.4 30.2 0.3 122.8 - 49
Laparoscopic Gastric Banding (LGB) 28 41.1 ± 23.5 36.2 6.4 111.7 - 28
Continuous Positive Airway Pressure (CPAP) 21 37.6 ± 32.4 25.2 0.3 122.8 - 21
Randomized treatment arm vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.0 ± 27.5 17.3 1.5 107.2 - 43
Laparoscopic Gastric Banding (LGB) 25 28.8 ± 24.7 19.3 1.8 102.5 - 25
Continuous Positive Airway Pressure (CPAP) 18 27.0 ± 31.7 13.5 1.5 107.2 - 18
Randomized treatment arm vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 26.7 ± 21.4 20.4 2.0 78.8 - 40
Laparoscopic Gastric Banding (LGB) 24 26.4 ± 22.9 19.6 2.0 78.8 - 24
Continuous Positive Airway Pressure (CPAP) 16 27.2 ± 19.8 23.9 3.0 67.9 - 16
Age of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 39.6 ± 27.4 30.2 0.3 122.8 - 49
27.0 to 45.0 years 13 39.8 ± 35.4 25.8 0.3 111.7 - 13
46.0 to 50.0 years 12 31.8 ± 17.4 28.3 6.4 67.0 - 12
51.0 to 56.0 years 12 45.1 ± 33.7 33.3 13.2 122.8 - 12
57.0 to 65.0 years 12 41.8 ± 19.4 35.4 17.1 74.6 - 12
Age of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.0 ± 27.5 17.3 1.5 107.2 - 43
28.0 to 47.0 years 11 25.7 ± 30.0 15.5 1.9 102.5 - 11
47.0 to 52.0 years 11 22.9 ± 18.3 16.2 1.5 57.3 - 11
52.0 to 58.0 years 11 33.5 ± 38.4 17.3 1.8 107.2 - 11
58.0 to 65.0 years 10 30.2 ± 21.0 29.9 4.0 74.9 - 10
Age of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 26.7 ± 21.4 20.4 2.0 78.8 - 40
29.0 to 46.0 years 10 32.9 ± 19.6 32.5 4.3 61.2 - 10
47.0 to 52.0 years 10 22.7 ± 19.0 20.7 2.0 61.6 - 10
53.0 to 58.0 years 10 22.9 ± 20.1 17.2 5.0 67.9 - 10
58.0 to 65.0 years 10 28.5 ± 27.5 17.3 2.1 78.8 - 10
Gender of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 39.6 ± 27.4 30.2 0.3 122.8 - 49
Male 28 44.7 ± 27.3 37.6 7.9 111.7 - 28
Female 21 32.8 ± 26.8 25.2 0.3 122.8 - 21
Gender of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.0 ± 27.5 17.3 1.5 107.2 - 43
Male 25 32.2 ± 29.1 19.8 1.9 107.2 - 25
Female 18 22.2 ± 24.7 15.3 1.5 101.1 - 18
Gender of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 26.7 ± 21.4 20.4 2.0 78.8 - 40
Male 25 29.7 ± 20.3 24.3 4.3 78.8 - 25
Female 15 21.8 ± 23.1 14.9 2.0 67.9 - 15
Race of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 39.6 ± 27.4 30.2 0.3 122.8 - 49
White 35 38.1 ± 25.9 28.1 0.3 111.7 - 35
Black 9 44.7 ± 31.5 38.2 15.0 122.8 - 9
Other 5 41.2 ± 35.3 27.6 13.7 102.6 - 5
Race of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.0 ± 27.5 17.3 1.5 107.2 - 43
White 31 25.4 ± 25.9 16.4 1.5 107.2 - 31
Black 8 43.3 ± 34.0 42.8 5.1 101.1 - 8
Other 4 17.5 ± 18.5 13.4 1.9 41.2 - 4
Race of the participant vs Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 26.7 ± 21.4 20.4 2.0 78.8 - 40
White 29 25.1 ± 19.5 21.7 2.0 78.8 - 29
Black 7 42.0 ± 27.6 43.0 11.9 77.5 - 7
Other 4 12.3 ± 6.6 12.5 4.3 19.6 - 4