Histogram

Visit (Number) vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline (BL) - - - - - - 1,516 1,516
Clinical Evaluation (CE) - - - - - - 1,516 1,516
Diagnostic Visit (DX) 1,223 19.4 ± 13.1 16.9 0.0 81.7 293 1,516
CPAP Titration Visit (CPAP) 1,065 12.5 ± 12.3 8.8 -2.0 90.4 451 1,516
Two Month Post-CPAP Neurocognitive Visit (2M) 879 10.6 ± 11.5 6.7 0.0 83.3 637 1,516
Four Month Post-CPAP Neurocognitive Visit (4M) - - - - - - 1,516 1,516
Six Month Post-CPAP Neurocognitive Visit (6M) 849 10.2 ± 10.8 6.9 0.0 68.4 667 1,516
Gender vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Baseline (BL)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Male - - - - - - 958 958
Female - - - - - - 558 558
Gender vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Clinical Evaluation (CE)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Male - - - - - - 958 958
Female - - - - - - 558 558
Gender vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Diagnostic Visit (DX)
N Mean StdDev Median Min Max Unknown Total
Total 1,223 19.4 ± 13.1 16.9 0.0 81.7 293 1,516
Male 783 19.1 ± 12.7 17.1 0.0 73.5 175 958
Female 440 20.0 ± 13.7 16.7 0.0 81.7 118 558
Gender vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
CPAP Titration Visit (CPAP)
N Mean StdDev Median Min Max Unknown Total
Total 1,065 12.5 ± 12.3 8.8 -2.0 90.4 451 1,516
Male 699 12.8 ± 11.9 9.4 -2.0 90.4 259 958
Female 366 12.0 ± 13.0 7.4 0.0 85.7 192 558
Gender vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Two Month Post-CPAP Neurocognitive Visit (2M)
N Mean StdDev Median Min Max Unknown Total
Total 879 10.6 ± 11.5 6.7 0.0 83.3 637 1,516
Male 572 10.3 ± 10.4 7.3 0.0 75.0 386 958
Female 307 11.1 ± 13.4 5.0 0.0 83.3 251 558
Gender vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Four Month Post-CPAP Neurocognitive Visit (4M)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Male - - - - - - 958 958
Female - - - - - - 558 558
Gender vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Six Month Post-CPAP Neurocognitive Visit (6M)
N Mean StdDev Median Min Max Unknown Total
Total 849 10.2 ± 10.8 6.9 0.0 68.4 667 1,516
Male 552 10.3 ± 10.7 7.1 0.0 68.4 406 958
Female 297 10.0 ± 11.0 5.9 0.0 59.8 261 558
Race/Ethnicity vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Baseline (BL)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Native American - - - - - - 28 28
Asian - - - - - - 89 89
Black - - - - - - 172 172
Hispanic - - - - - - 116 116
White - - - - - - 1,102 1,102
Other - - - - - - 9 9
Race/Ethnicity vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Clinical Evaluation (CE)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Native American - - - - - - 28 28
Asian - - - - - - 89 89
Black - - - - - - 172 172
Hispanic - - - - - - 116 116
White - - - - - - 1,102 1,102
Other - - - - - - 9 9
Race/Ethnicity vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Diagnostic Visit (DX)
N Mean StdDev Median Min Max Unknown Total
Total 1,223 19.4 ± 13.1 16.9 0.0 81.7 293 1,516
Native American 20 18.4 ± 13.0 15.1 3.1 58.0 8 28
Asian 73 15.1 ± 11.4 11.6 0.0 52.3 16 89
Black 120 19.5 ± 13.0 17.0 0.0 76.2 52 172
Hispanic 84 19.8 ± 13.7 15.5 0.0 76.0 32 116
White 918 19.8 ± 13.1 17.2 0.0 81.7 184 1,102
Other 8 16.5 ± 8.3 19.1 1.9 27.5 1 9
Race/Ethnicity vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
CPAP Titration Visit (CPAP)
N Mean StdDev Median Min Max Unknown Total
Total 1,065 12.5 ± 12.3 8.8 -2.0 90.4 451 1,516
Native American 17 10.3 ± 10.0 8.4 0.9 40.5 11 28
Asian 60 10.2 ± 11.5 6.0 0.0 52.6 29 89
Black 97 10.8 ± 13.0 6.6 0.0 90.4 75 172
Hispanic 72 12.2 ± 11.5 9.1 0.1 65.1 44 116
White 814 12.9 ± 12.4 9.3 -2.0 85.7 288 1,102
Other 5 14.7 ± 9.0 15.7 1.6 26.6 4 9
Race/Ethnicity vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Two Month Post-CPAP Neurocognitive Visit (2M)
N Mean StdDev Median Min Max Unknown Total
Total 879 10.6 ± 11.5 6.7 0.0 83.3 637 1,516
Native American 13 9.0 ± 13.0 5.8 0.3 50.5 15 28
Asian 49 6.5 ± 7.1 3.9 0.0 27.9 40 89
Black 77 7.9 ± 7.1 5.9 0.0 27.7 95 172
Hispanic 65 12.3 ± 11.9 9.3 0.0 44.9 51 116
White 672 11.0 ± 12.0 7.0 0.0 83.3 430 1,102
Other 3 20.1 ± 11.9 18.7 9.0 32.6 6 9
Race/Ethnicity vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Four Month Post-CPAP Neurocognitive Visit (4M)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Native American - - - - - - 28 28
Asian - - - - - - 89 89
Black - - - - - - 172 172
Hispanic - - - - - - 116 116
White - - - - - - 1,102 1,102
Other - - - - - - 9 9
Race/Ethnicity vs Hypopnea Index: (Hypopneas with > 50% flow reduction and without oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Six Month Post-CPAP Neurocognitive Visit (6M)
N Mean StdDev Median Min Max Unknown Total
Total 849 10.2 ± 10.8 6.9 0.0 68.4 667 1,516
Native American 13 8.5 ± 8.0 5.3 0.8 25.1 15 28
Asian 50 6.2 ± 6.7 3.5 0.0 23.8 39 89
Black 75 7.7 ± 8.0 5.2 0.0 38.3 97 172
Hispanic 61 10.5 ± 9.9 7.5 0.0 46.1 55 116
White 647 10.8 ± 11.3 7.3 0.0 68.4 455 1,102
Other 3 20.3 ± 16.4 12.4 9.4 39.1 6 9