omahi3_change omahi3o
Name
omahi3nr
Label
Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Description

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

Calculation
omahi3nr = 60*(oanbp + oanop + manrbp + manrop + hnrba3 + hnroa3) / slpprdp
Units
events per hour
Type
numeric
Tags
omahi_sn_oa0uma0uhp5x3r_f1t1
Visit Number vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline 453 3.9 ± 3.7 2.6 0.0 25.9 - 453
Follow-up 407 2.3 ± 5.8 0.8 0.0 62.0 46 453
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 3.9 ± 3.7 2.6 0.0 25.9 - 453
Early adenotonsillectomy (EAT) 226 3.9 ± 3.7 2.5 0.1 25.9 - 226
Watchful waiting with supportive care (WWSC) 227 3.9 ± 3.6 2.7 0.0 18.4 - 227
Treatment Arm vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.3 ± 5.8 0.8 0.0 62.0 46 453
Early adenotonsillectomy (EAT) 199 0.9 ± 1.7 0.4 0.0 19.2 27 226
Watchful waiting with supportive care (WWSC) 208 3.7 ± 7.8 1.4 0.0 62.0 19 227
Child's age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 3.9 ± 3.7 2.6 0.0 25.9 - 453
5 - 7 years old 329 3.7 ± 3.4 2.5 0.1 25.3 - 329
8 - 10 years old 124 4.4 ± 4.3 3.2 0.0 25.9 - 124
Child's age vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 2.3 ± 5.9 0.8 0.0 62.0 2 399
5 - 7 years old 260 2.4 ± 6.6 0.6 0.0 62.0 2 262
8 - 10 years old 137 2.2 ± 4.3 1.0 0.0 33.7 - 137
Child's gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 3.9 ± 3.7 2.6 0.0 25.9 - 453
Female 234 4.1 ± 3.9 2.8 0.1 25.9 - 234
Male 219 3.7 ± 3.4 2.5 0.0 18.4 - 219
Child's gender vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.3 ± 5.8 0.8 0.0 62.0 46 453
Female 209 2.6 ± 7.0 0.7 0.0 62.0 25 234
Male 198 2.0 ± 4.3 0.8 0.0 47.0 21 219
Child's race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 3.9 ± 3.7 2.6 0.0 25.9 - 453
White 156 3.5 ± 3.3 2.6 0.0 25.3 - 156
Black 249 4.1 ± 3.9 2.6 0.1 25.9 - 249
Other 48 4.0 ± 3.5 2.5 0.7 16.2 - 48
Child's race vs Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 2.3 ± 5.8 0.8 0.0 62.0 46 453
White 147 2.2 ± 6.1 0.7 0.0 47.7 9 156
Black 217 2.4 ± 5.9 0.8 0.0 62.0 32 249
Other 43 2.2 ± 4.5 0.7 0.0 28.4 5 48