omahi3 omahi3_change
Name
omahi3b
Label
Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Description

Calculated - Summary metric of sleep disordered breathing events. will be missing if Total Sleep Time (TST) is 0.

Calculation
omahi3b = 60*(oarbp + oanbp + marbp + manrbp + hremba3 + hnrba3 ) / slpprdp
Units
events per hour
Type
numeric
Tags
omahi_pb_oa0uma0uhp5x3r_f1t1
Visit Number vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
Follow-up 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
Early adenotonsillectomy (EAT) 226 2.7 ± 3.2 1.7 0.0 16.6 - 226
Watchful waiting with supportive care (WWSC) 227 2.9 ± 3.4 1.9 0.0 26.1 - 227
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
Early adenotonsillectomy (EAT) 199 1.0 ± 2.0 0.4 0.0 17.8 27 226
Watchful waiting with supportive care (WWSC) 208 2.7 ± 5.7 0.9 0.0 47.1 19 227
Child's age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
5 - 7 years old 329 2.7 ± 3.1 1.6 0.0 16.4 - 329
8 - 10 years old 124 3.0 ± 3.8 2.1 0.0 26.1 - 124
Child's age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 1.9 ± 4.4 0.6 0.0 47.1 2 399
5 - 7 years old 260 1.9 ± 5.1 0.5 0.0 47.1 2 262
8 - 10 years old 137 1.9 ± 2.9 0.8 0.0 18.9 - 137
Child's gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
Female 234 2.8 ± 3.5 1.8 0.0 26.1 - 234
Male 219 2.8 ± 3.1 1.7 0.0 16.4 - 219
Child's gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
Female 209 1.7 ± 3.9 0.6 0.0 36.3 25 234
Male 198 2.0 ± 4.9 0.6 0.0 47.1 21 219
Child's race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 2.8 ± 3.3 1.8 0.0 26.1 - 453
White 156 2.8 ± 3.2 1.7 0.0 16.4 - 156
Black 249 2.8 ± 3.4 1.9 0.0 26.1 - 249
Other 48 2.7 ± 3.4 1.6 0.0 14.7 - 48
Child's race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 1.9 ± 4.4 0.6 0.0 47.1 46 453
White 147 2.1 ± 5.8 0.6 0.0 47.1 9 156
Black 217 1.7 ± 3.5 0.5 0.0 27.7 32 249
Other 43 1.7 ± 3.0 0.6 0.0 16.7 5 48