Name
cahi_ca0uhp3x3u_f1t1
Label
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
Description
Calculated - Summary metric of sleep disordered breathing events.
Calculation
cahi_ca0uhp3x3u_f1t1 = 60 * (hrembp3 + hrop3 + hnrbp3 + hnrop3 + urbp3 + urop3 + unrbp3 + unrop3 + carbp + carop + canbp + canop) / ttldursp
Units
events per hour
Type
numeric
Visit number vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Baseline | 49 | 38.1 | ± 16.4 | 36.4 | 0.9 | 72.1 | - | 49 |
9-Month Followup | 43 | 28.7 | ± 18.0 | 24.5 | 5.1 | 88.0 | - | 43 |
18-Month Followup | 40 | 30.1 | ± 20.2 | 28.1 | 4.1 | 80.2 | - | 40 |
Randomized treatment arm vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
Baseline
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 49 | 38.1 | ± 16.4 | 36.4 | 0.9 | 72.1 | - | 49 |
Laparoscopic Gastric Banding (LGB) | 28 | 40.4 | ± 15.1 | 39.1 | 15.4 | 70.5 | - | 28 |
Continuous Positive Airway Pressure (CPAP) | 21 | 35.0 | ± 17.8 | 30.2 | 0.9 | 72.1 | - | 21 |
Randomized treatment arm vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
9-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 43 | 28.7 | ± 18.0 | 24.5 | 5.1 | 88.0 | - | 43 |
Laparoscopic Gastric Banding (LGB) | 25 | 31.8 | ± 19.9 | 27.0 | 5.1 | 88.0 | - | 25 |
Continuous Positive Airway Pressure (CPAP) | 18 | 24.5 | ± 14.5 | 21.7 | 5.4 | 46.5 | - | 18 |
Randomized treatment arm vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
18-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 40 | 30.1 | ± 20.2 | 28.1 | 4.1 | 80.2 | - | 40 |
Laparoscopic Gastric Banding (LGB) | 24 | 28.2 | ± 19.9 | 21.4 | 4.1 | 80.2 | - | 24 |
Continuous Positive Airway Pressure (CPAP) | 16 | 33.0 | ± 21.0 | 30.5 | 7.5 | 79.2 | - | 16 |
Age of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
Baseline
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 49 | 38.1 | ± 16.4 | 36.4 | 0.9 | 72.1 | - | 49 |
27.0 to 45.0 years | 13 | 32.9 | ± 15.8 | 38.7 | 0.9 | 53.7 | - | 13 |
46.0 to 50.0 years | 12 | 37.8 | ± 16.1 | 34.7 | 15.4 | 72.1 | - | 12 |
51.0 to 56.0 years | 12 | 37.3 | ± 18.0 | 31.8 | 12.9 | 70.5 | - | 12 |
57.0 to 65.0 years | 12 | 44.7 | ± 15.2 | 43.2 | 24.0 | 68.9 | - | 12 |
Age of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
9-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 43 | 28.7 | ± 18.0 | 24.5 | 5.1 | 88.0 | - | 43 |
28.0 to 47.0 years | 11 | 23.0 | ± 16.0 | 21.7 | 6.0 | 44.4 | - | 11 |
47.0 to 52.0 years | 11 | 27.0 | ± 15.6 | 24.5 | 5.4 | 55.9 | - | 11 |
52.0 to 58.0 years | 11 | 26.1 | ± 14.8 | 20.3 | 5.1 | 50.2 | - | 11 |
58.0 to 65.0 years | 10 | 39.8 | ± 22.9 | 40.5 | 9.4 | 88.0 | - | 10 |
Age of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
18-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 40 | 30.1 | ± 20.2 | 28.1 | 4.1 | 80.2 | - | 40 |
29.0 to 46.0 years | 10 | 35.3 | ± 19.7 | 35.6 | 9.7 | 70.3 | - | 10 |
47.0 to 52.0 years | 10 | 27.9 | ± 18.7 | 26.3 | 4.2 | 58.2 | - | 10 |
53.0 to 58.0 years | 10 | 27.5 | ± 23.1 | 17.3 | 8.7 | 79.2 | - | 10 |
58.0 to 65.0 years | 10 | 29.7 | ± 21.4 | 26.1 | 4.1 | 80.2 | - | 10 |
Gender of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
Baseline
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 49 | 38.1 | ± 16.4 | 36.4 | 0.9 | 72.1 | - | 49 |
Male | 28 | 39.6 | ± 15.9 | 39.2 | 12.9 | 70.5 | - | 28 |
Female | 21 | 36.1 | ± 17.2 | 31.4 | 0.9 | 72.1 | - | 21 |
Gender of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
9-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 43 | 28.7 | ± 18.0 | 24.5 | 5.1 | 88.0 | - | 43 |
Male | 25 | 31.8 | ± 20.2 | 29.9 | 6.1 | 88.0 | - | 25 |
Female | 18 | 24.4 | ± 13.8 | 22.5 | 5.1 | 46.5 | - | 18 |
Gender of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
18-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 40 | 30.1 | ± 20.2 | 28.1 | 4.1 | 80.2 | - | 40 |
Male | 25 | 32.6 | ± 17.6 | 30.3 | 8.7 | 80.2 | - | 25 |
Female | 15 | 26.0 | ± 24.1 | 16.8 | 4.1 | 79.2 | - | 15 |
Race of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
Baseline
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 46 | 38.7 | ± 16.5 | 37.4 | 0.9 | 72.1 | - | 46 |
white | 35 | 36.7 | ± 17.3 | 32.3 | 0.9 | 72.1 | - | 35 |
american indian or alaska native | - | - | - | - | - | - | - | - |
black or african american | 9 | 44.8 | ± 13.5 | 50.2 | 22.9 | 60.8 | - | 9 |
asian | 2 | 44.7 | ± 8.0 | 44.7 | 39.0 | 50.4 | - | 2 |
native hawaiian or other pacific islander | - | - | - | - | - | - | - | - |
other | - | - | - | - | - | - | - | - |
multiple | - | - | - | - | - | - | - | - |
Race of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
9-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 40 | 29.2 | ± 18.1 | 24.8 | 5.1 | 88.0 | - | 40 |
white | 31 | 26.3 | ± 14.3 | 23.9 | 5.1 | 50.2 | - | 31 |
american indian or alaska native | - | - | - | - | - | - | - | - |
black or african american | 8 | 43.2 | ± 24.8 | 42.4 | 9.0 | 88.0 | - | 8 |
asian | 1 | 6.9 | - | 6.9 | 6.9 | 6.9 | - | 1 |
native hawaiian or other pacific islander | - | - | - | - | - | - | - | - |
other | - | - | - | - | - | - | - | - |
multiple | - | - | - | - | - | - | - | - |
Race of the participant vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography
18-Month Followup
N | Mean | StdDev | Median | Min | Max | Unknown | Total | |
---|---|---|---|---|---|---|---|---|
Total | 37 | 31.2 | ± 20.6 | 29.5 | 4.1 | 80.2 | - | 37 |
white | 29 | 27.7 | ± 17.3 | 29.2 | 4.1 | 70.3 | - | 29 |
american indian or alaska native | - | - | - | - | - | - | - | - |
black or african american | 7 | 48.5 | ± 26.1 | 52.8 | 19.4 | 80.2 | - | 7 |
asian | 1 | 10.0 | - | 10.0 | 10.0 | 10.0 | - | 1 |
native hawaiian or other pacific islander | - | - | - | - | - | - | - | - |
other | - | - | - | - | - | - | - | - |
multiple | - | - | - | - | - | - | - | - |