Name
oahi_oa0uhp3x3r
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 >= 3% oxygen desaturation or with arousal) / hour of sleep
Description

Calculated - Summary metric of sleep disordered breathing events. The definition for hypopneas is consistent with the following clinical guidelines: (1) American Academy of Sleep Medicine (AASM) 2007 Manual (2012 update) (recommended). Berry RB et al. 2012 (PubMed ID:23066376), and (2) American Academy of Sleep Medicine (AASM) 2015 (recommended) [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_oa0uhp3x3r = 60 * (hremba3 + hroa3 + hnrba3 + hnroa3 + urbpa3 + uropa3 + unrbpa3 + unropa3 + 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
N Mean StdDev Median Min Max Unknown Total
Baseline 49 51.3 ± 27.0 45.4 1.0 129.8 - 49
9-Month Followup 43 39.3 ± 28.4 30.5 6.8 113.6 - 43
18-Month Followup 40 36.2 ± 23.7 28.6 4.6 87.2 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 51.3 ± 27.0 45.4 1.0 129.8 - 49
Laparoscopic Gastric Banding (LGB) 28 52.7 ± 23.3 48.8 15.4 113.7 - 28
Continuous Positive Airway Pressure (CPAP) 21 49.5 ± 31.9 39.4 1.0 129.8 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 39.3 ± 28.4 30.5 6.8 113.6 - 43
Laparoscopic Gastric Banding (LGB) 25 40.6 ± 26.2 30.7 7.3 113.6 - 25
Continuous Positive Airway Pressure (CPAP) 18 37.5 ± 31.9 25.1 6.8 110.5 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 36.2 ± 23.7 28.6 4.6 87.2 - 40
Laparoscopic Gastric Banding (LGB) 24 35.0 ± 24.2 26.4 4.6 86.9 - 24
Continuous Positive Airway Pressure (CPAP) 16 37.9 ± 23.6 33.8 8.2 87.2 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 51.3 ± 27.0 45.4 1.0 129.8 - 49
27.0 to 45.0 years 13 49.0 ± 34.3 41.8 1.0 113.7 - 13
46.0 to 50.0 years 12 44.3 ± 20.6 41.9 15.4 88.1 - 12
51.0 to 56.0 years 12 56.3 ± 32.7 45.5 20.7 129.8 - 12
57.0 to 65.0 years 12 55.8 ± 17.5 56.3 26.3 79.5 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 39.3 ± 28.4 30.5 6.8 113.6 - 43
28.0 to 47.0 years 11 35.4 ± 33.3 24.1 6.8 113.6 - 11
47.0 to 52.0 years 11 35.2 ± 19.2 30.7 7.9 65.9 - 11
52.0 to 58.0 years 11 42.0 ± 36.7 25.5 7.3 110.5 - 11
58.0 to 65.0 years 10 45.3 ± 23.1 49.8 11.3 91.8 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 36.2 ± 23.7 28.6 4.6 87.2 - 40
29.0 to 46.0 years 10 44.0 ± 22.8 41.3 11.9 75.5 - 10
47.0 to 52.0 years 10 31.4 ± 20.7 30.9 5.6 63.1 - 10
53.0 to 58.0 years 10 32.5 ± 25.5 22.6 10.8 87.2 - 10
58.0 to 65.0 years 10 36.8 ± 27.1 28.0 4.6 86.9 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 51.3 ± 27.0 45.4 1.0 129.8 - 49
Male 28 56.1 ± 25.6 52.1 13.0 113.7 - 28
Female 21 44.9 ± 28.2 37.5 1.0 129.8 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 39.3 ± 28.4 30.5 6.8 113.6 - 43
Male 25 44.0 ± 30.2 35.9 6.8 113.6 - 25
Female 18 32.9 ± 25.1 25.8 7.3 110.5 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 36.2 ± 23.7 28.6 4.6 87.2 - 40
Male 25 40.7 ± 21.6 35.0 11.4 86.9 - 25
Female 15 28.6 ± 25.9 20.6 4.6 87.2 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 51.3 ± 27.0 45.4 1.0 129.8 - 49
White 35 50.2 ± 26.2 43.6 1.0 113.7 - 35
Black 9 55.4 ± 30.6 46.3 28.6 129.8 - 9
Other 5 51.9 ± 31.8 45.3 19.9 104.9 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 39.3 ± 28.4 30.5 6.8 113.6 - 43
White 31 36.6 ± 26.5 30.1 7.3 113.6 - 31
Black 8 57.3 ± 33.6 61.2 11.4 110.5 - 8
Other 4 24.4 ± 20.7 19.3 6.8 52.1 - 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 >= 3% oxygen desaturation or with arousal) / hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 36.2 ± 23.7 28.6 4.6 87.2 - 40
White 29 34.5 ± 22.0 33.1 4.6 81.7 - 29
Black 7 53.4 ± 28.4 61.4 22.5 87.2 - 7
Other 4 18.3 ± 6.7 17.4 11.9 26.6 - 4