Name
rdinba2
Label
Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Description

Calculated - Summary metric of sleep disordered breathing events.

Units
events per hour
Type
numeric
Visit Number vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline 453 4.8 ± 9.6 2.3 0.0 120.0 - 453
Follow-up 407 3.0 ± 7.9 0.6 0.0 70.6 46 453
Treatment Arm vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.8 ± 9.6 2.3 0.0 120.0 - 453
Early adenotonsillectomy (EAT) 226 4.7 ± 8.0 2.4 0.0 80.0 - 226
Watchful waiting with supportive care (WWSC) 227 5.0 ± 11.0 2.2 0.0 120.0 - 227
Treatment Arm vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.0 ± 7.9 0.6 0.0 70.6 46 453
Early adenotonsillectomy (EAT) 199 1.1 ± 2.2 0.3 0.0 15.0 27 226
Watchful waiting with supportive care (WWSC) 208 4.8 ± 10.6 1.4 0.0 70.6 19 227
Child's age vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.8 ± 9.6 2.3 0.0 120.0 - 453
5 - 7 years old 329 3.7 ± 5.5 1.8 0.0 46.2 - 329
8 - 10 years old 124 7.9 ± 15.6 3.9 0.0 120.0 - 124
Child's age vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 3.0 ± 8.0 0.6 0.0 70.6 2 399
5 - 7 years old 260 3.0 ± 8.0 0.5 0.0 66.7 2 262
8 - 10 years old 137 3.0 ± 8.0 0.9 0.0 70.6 - 137
Child's gender vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.8 ± 9.6 2.3 0.0 120.0 - 453
Female 234 5.3 ± 9.6 2.5 0.0 80.0 - 234
Male 219 4.3 ± 9.5 2.2 0.0 120.0 - 219
Child's gender vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.0 ± 7.9 0.6 0.0 70.6 46 453
Female 209 2.8 ± 7.7 0.6 0.0 70.6 25 234
Male 198 3.2 ± 8.2 0.7 0.0 66.7 21 219
Child's race vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 4.8 ± 9.6 2.3 0.0 120.0 - 453
White 156 4.7 ± 8.2 2.7 0.0 76.4 - 156
Black 249 5.1 ± 10.7 2.2 0.0 120.0 - 249
Other 48 3.9 ± 7.0 1.3 0.0 42.5 - 48
Child's race vs Hypopnea Index (NREM, Supine) : (Hypopneas with > 50% flow reduction and with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 3.0 ± 7.9 0.6 0.0 70.6 46 453
White 147 3.2 ± 8.8 0.8 0.0 66.7 9 156
Black 217 2.8 ± 7.5 0.6 0.0 70.6 32 249
Other 43 3.3 ± 6.8 0.7 0.0 36.0 5 48