Name

cai_c0

Label

Central Apnea Index (CAI) - number of central apneas per hour of sleep

Calculation
cai_c0 = 60 * (carbp + carop + canbp + canop ) / slpprdp
Units
events per hour
Type
numeric
Visit number vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Baseline 49 0.8 ± 1.9 0.0 0.0 7.5 - 49
9-Month Followup 43 0.8 ± 3.7 0.0 0.0 24.0 - 43
18-Month Followup 40 0.8 ± 2.2 0.2 0.0 12.9 - 40
Randomized Treatment Arm vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 0.8 ± 1.9 0.0 0.0 7.5 - 49
Laparoscopic Gastric Banding (LGB) 28 1.0 ± 2.2 0.0 0.0 7.5 - 28
Continuous Positive Airway Pressure (CPAP) 21 0.6 ± 1.6 0.0 0.0 7.0 - 21
Randomized Treatment Arm vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 0.8 ± 3.7 0.0 0.0 24.0 - 43
Laparoscopic Gastric Banding (LGB) 25 1.3 ± 4.9 0.0 0.0 24.0 - 25
Continuous Positive Airway Pressure (CPAP) 18 0.1 ± 0.3 0.0 0.0 1.2 - 18
Randomized Treatment Arm vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 0.8 ± 2.2 0.2 0.0 12.9 - 40
Laparoscopic Gastric Banding (LGB) 24 1.1 ± 2.8 0.2 0.0 12.9 - 24
Continuous Positive Airway Pressure (CPAP) 16 0.4 ± 0.6 0.1 0.0 1.8 - 16
Age of participant vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 0.8 ± 1.9 0.0 0.0 7.5 - 49
27.0 to 45.0 years 13 0.9 ± 2.1 0.0 0.0 7.5 - 13
46.0 to 50.0 years 12 0.7 ± 2.0 0.0 0.0 7.0 - 12
51.0 to 56.0 years 12 1.0 ± 2.2 0.0 0.0 6.6 - 12
57.0 to 65.0 years 12 0.6 ± 1.6 0.0 0.0 5.4 - 12
Age of participant vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 0.8 ± 3.7 0.0 0.0 24.0 - 43
28.0 to 47.0 years 11 0.6 ± 1.7 0.0 0.0 5.7 - 11
47.0 to 52.0 years 11 0.05 ± 0.07 0.0 0.0 0.2 - 11
52.0 to 58.0 years 11 2.4 ± 7.2 0.0 0.0 24.0 - 11
58.0 to 65.0 years 10 0.2 ± 0.4 0.0 0.0 1.2 - 10
Age of participant vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 0.8 ± 2.2 0.2 0.0 12.9 - 40
29.0 to 46.0 years 10 0.9 ± 1.7 0.1 0.0 5.1 - 10
47.0 to 52.0 years 10 0.8 ± 0.8 0.4 0.0 1.8 - 10
53.0 to 58.0 years 10 1.5 ± 4.0 0.2 0.0 12.9 - 10
58.0 to 65.0 years 10 0.2 ± 0.4 0.0 0.0 1.1 - 10
Gender vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 0.8 ± 1.9 0.0 0.0 7.5 - 49
Male 28 1.3 ± 2.4 0.0 0.0 7.5 - 28
Female 21 0.1 ± 0.3 0.0 0.0 1.3 - 21
Gender vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 0.8 ± 3.7 0.0 0.0 24.0 - 43
Male 25 1.4 ± 4.8 0.0 0.0 24.0 - 25
Female 18 0.07 ± 0.1 0.0 0.0 0.4 - 18
Gender vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 0.8 ± 2.2 0.2 0.0 12.9 - 40
Male 25 1.1 ± 2.7 0.2 0.0 12.9 - 25
Female 15 0.3 ± 0.6 0.1 0.0 1.8 - 15
Race vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 49 0.8 ± 1.9 0.0 0.0 7.5 - 49
White 35 0.8 ± 2.0 0.0 0.0 7.5 - 35
Black 9 0.9 ± 2.3 0.0 0.0 7.0 - 9
Other 5 0.8 ± 1.1 0.1 0.0 2.4 - 5
Race vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
9-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 43 0.8 ± 3.7 0.0 0.0 24.0 - 43
White 31 1.1 ± 4.4 0.0 0.0 24.0 - 31
Black 8 0.1 ± 0.2 0.0 0.0 0.7 - 8
Other 4 0.3 ± 0.6 0.0 0.0 1.2 - 4
Race vs Central Apnea Index (CAI) - number of central apneas per hour of sleep
18-Month Followup
N Mean StdDev Median Min Max Unknown Total
Total 40 0.8 ± 2.2 0.2 0.0 12.9 - 40
White 29 1.0 ± 2.5 0.2 0.0 12.9 - 29
Black 7 0.6 ± 0.7 0.2 0.0 1.7 - 7
Other 4 0.1 ± 0.2 0.06 0.0 0.3 - 4