Name

ahi_a0h4

Label

Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep

Calculation
ahi_a0h4 = 60 * (hrembp4 + hrop4 + hnrbp4 + hnrop4 + urbp4 + urop4 + unrbp4 + unrop4 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop ) / slpprdp
Units
events per hour
Type
numeric
Visit number vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Baseline 49 40.4 ± 27.8 30.4 0.4 122.8 - 49
9-Month Followup 43 28.8 ± 28.0 17.6 1.7 108.2 - 43
18-Month Followup 40 27.6 ± 21.7 21.5 2.0 79.4 - 40
Randomized Treatment Arm vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 40.4 ± 27.8 30.4 0.4 122.8 - 49
Laparoscopic Gastric Banding (LGB) 28 42.1 ± 24.4 37.7 6.4 113.4 - 28
Continuous Positive Airway Pressure (CPAP) 21 38.2 ± 32.3 25.2 0.4 122.8 - 21
Randomized Treatment Arm vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.8 ± 28.0 17.6 1.7 108.2 - 43
Laparoscopic Gastric Banding (LGB) 25 30.1 ± 25.5 19.3 2.1 108.2 - 25
Continuous Positive Airway Pressure (CPAP) 18 27.1 ± 31.8 13.5 1.7 107.6 - 18
Randomized Treatment Arm vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 27.6 ± 21.7 21.5 2.0 79.4 - 40
Laparoscopic Gastric Banding (LGB) 24 27.6 ± 23.3 20.6 2.0 79.4 - 24
Continuous Positive Airway Pressure (CPAP) 16 27.6 ± 19.9 23.9 3.5 68.0 - 16
Age of participant vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 40.4 ± 27.8 30.4 0.4 122.8 - 49
27.0 to 45.0 years 13 40.7 ± 36.3 26.8 0.4 113.4 - 13
46.0 to 50.0 years 12 32.5 ± 17.4 30.5 6.4 67.0 - 12
51.0 to 56.0 years 12 46.1 ± 34.0 33.4 13.2 122.8 - 12
57.0 to 65.0 years 12 42.4 ± 19.1 38.1 17.1 74.8 - 12
Age of participant vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.8 ± 28.0 17.6 1.7 108.2 - 43
28.0 to 47.0 years 11 26.3 ± 31.5 15.5 1.9 108.2 - 11
47.0 to 52.0 years 11 23.0 ± 18.2 16.2 1.7 57.3 - 11
52.0 to 58.0 years 11 35.8 ± 38.4 17.8 2.1 107.6 - 11
58.0 to 65.0 years 10 30.4 ± 21.0 29.9 4.2 74.9 - 10
Age of participant vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 27.6 ± 21.7 21.5 2.0 79.4 - 40
29.0 to 46.0 years 10 33.9 ± 20.7 32.5 4.5 66.3 - 10
47.0 to 52.0 years 10 23.5 ± 19.4 20.9 2.0 63.3 - 10
53.0 to 58.0 years 10 24.3 ± 19.9 20.6 5.1 68.0 - 10
58.0 to 65.0 years 10 28.7 ± 27.6 17.8 2.1 79.4 - 10
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 40.4 ± 27.8 30.4 0.4 122.8 - 49
Male 28 46.1 ± 27.7 39.8 7.9 113.4 - 28
Female 21 32.9 ± 26.7 25.2 0.4 122.8 - 21
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.8 ± 28.0 17.6 1.7 108.2 - 43
Male 25 33.6 ± 29.8 28.4 1.9 108.2 - 25
Female 18 22.2 ± 24.6 15.3 1.7 101.1 - 18
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 27.6 ± 21.7 21.5 2.0 79.4 - 40
Male 25 30.9 ± 20.4 26.7 4.5 79.4 - 25
Female 15 22.1 ± 23.3 15.0 2.0 68.0 - 15
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 40.4 ± 27.8 30.4 0.4 122.8 - 49
White 35 38.9 ± 26.6 28.1 0.4 113.4 - 35
Black 9 45.6 ± 31.1 38.2 15.0 122.8 - 9
Other 5 42.0 ± 34.9 29.2 13.7 102.6 - 5
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 28.8 ± 28.0 17.6 1.7 108.2 - 43
White 31 26.5 ± 26.7 16.4 1.7 108.2 - 31
Black 8 43.4 ± 33.9 43.2 5.2 101.1 - 8
Other 4 17.7 ± 19.0 13.4 1.9 42.4 - 4
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 27.6 ± 21.7 21.5 2.0 79.4 - 40
White 29 26.1 ± 19.9 23.5 2.0 79.4 - 29
Black 7 42.6 ± 27.6 43.2 11.9 77.7 - 7
Other 4 12.4 ± 6.7 12.5 4.5 19.9 - 4