Name

ahi_a0h4a

Label

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

Calculation
ahi_a0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + urbpa4 + uropa4 + unrbpa4 + unropa4 + 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 or arousal] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Baseline 49 45.0 ± 27.8 37.8 0.9 124.0 - 49
9-Month Followup 43 33.8 ± 28.4 24.8 3.3 115.6 - 43
18-Month Followup 40 31.4 ± 22.6 25.0 3.1 82.0 - 40
Randomized Treatment Arm vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 45.0 ± 27.8 37.8 0.9 124.0 - 49
Laparoscopic Gastric Banding (LGB) 28 46.3 ± 24.5 42.7 6.4 114.5 - 28
Continuous Positive Airway Pressure (CPAP) 21 43.1 ± 32.2 31.5 0.9 124.0 - 21
Randomized Treatment Arm vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 33.8 ± 28.4 24.8 3.3 115.6 - 43
Laparoscopic Gastric Banding (LGB) 25 34.9 ± 26.2 26.1 5.3 115.6 - 25
Continuous Positive Airway Pressure (CPAP) 18 32.4 ± 31.8 19.6 3.3 108.9 - 18
Randomized Treatment Arm vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 31.4 ± 22.6 25.0 3.1 82.0 - 40
Laparoscopic Gastric Banding (LGB) 24 31.1 ± 23.9 23.0 3.1 82.0 - 24
Continuous Positive Airway Pressure (CPAP) 16 31.7 ± 21.2 26.6 6.0 71.4 - 16
Age of participant vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 45.0 ± 27.8 37.8 0.9 124.0 - 49
27.0 to 45.0 years 13 44.7 ± 36.1 29.3 0.9 114.5 - 13
46.0 to 50.0 years 12 37.0 ± 18.1 36.8 6.4 72.8 - 12
51.0 to 56.0 years 12 49.8 ± 34.2 36.3 16.9 124.0 - 12
57.0 to 65.0 years 12 48.3 ± 18.8 47.3 19.4 75.1 - 12
Age of participant vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 33.8 ± 28.4 24.8 3.3 115.6 - 43
28.0 to 47.0 years 11 31.5 ± 33.7 20.8 3.3 115.6 - 11
47.0 to 52.0 years 11 28.4 ± 17.6 24.8 6.5 59.4 - 11
52.0 to 58.0 years 11 38.5 ± 37.7 20.0 5.4 108.9 - 11
58.0 to 65.0 years 10 37.2 ± 22.0 40.5 7.3 82.8 - 10
Age of participant vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 31.4 ± 22.6 25.0 3.1 82.0 - 40
29.0 to 46.0 years 10 38.7 ± 22.2 36.8 8.3 74.6 - 10
47.0 to 52.0 years 10 26.6 ± 19.5 26.9 3.9 64.1 - 10
53.0 to 58.0 years 10 28.2 ± 21.7 21.9 7.0 71.4 - 10
58.0 to 65.0 years 10 31.9 ± 27.7 21.0 3.1 82.0 - 10
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 45.0 ± 27.8 37.8 0.9 124.0 - 49
Male 28 50.9 ± 27.3 46.2 9.3 114.5 - 28
Female 21 37.1 ± 27.2 30.8 0.9 124.0 - 21
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 33.8 ± 28.4 24.8 3.3 115.6 - 43
Male 25 38.8 ± 30.4 31.3 3.3 115.6 - 25
Female 18 26.8 ± 24.4 19.5 5.3 102.2 - 18
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 31.4 ± 22.6 25.0 3.1 82.0 - 40
Male 25 35.5 ± 21.4 31.3 7.0 82.0 - 25
Female 15 24.4 ± 23.5 16.5 3.1 71.4 - 15
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 45.0 ± 27.8 37.8 0.9 124.0 - 49
White 35 43.9 ± 27.1 34.8 0.9 114.5 - 35
Black 9 48.8 ± 30.3 41.8 20.2 124.0 - 9
Other 5 45.3 ± 34.3 37.7 15.2 104.3 - 5
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 33.8 ± 28.4 24.8 3.3 115.6 - 43
White 31 31.8 ± 27.3 24.8 5.3 115.6 - 31
Black 8 48.5 ± 33.2 49.8 6.8 102.2 - 8
Other 4 20.1 ± 19.6 15.3 3.3 46.3 - 4
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 31.4 ± 22.6 25.0 3.1 82.0 - 40
White 29 30.3 ± 21.3 28.0 3.1 82.0 - 29
Black 7 45.6 ± 27.4 46.5 16.8 81.3 - 7
Other 4 14.3 ± 5.6 14.3 8.3 20.3 - 4