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Histogram

Visit vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 2,911 12.4 ± 10.0 10.0 0.0 89.0 - 2,911
Visit 2 1,026 13.7 ± 11.9 11.0 0.0 82.0 1,885 2,911
Age at Sleep Visit 1 vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 12.4 ± 10.0 10.0 0.0 89.0 - 2,911
67.0 to 72.0 years 728 11.7 ± 9.1 9.0 0.0 70.0 - 728
72.0 to 76.0 years 728 12.0 ± 9.7 10.0 0.0 89.0 - 728
76.0 to 80.0 years 728 13.0 ± 10.4 10.0 0.0 70.0 - 728
80.0 to 90.0 years 727 12.9 ± 10.8 10.0 0.0 76.0 - 727
Gender vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 12.4 ± 10.0 10.0 0.0 89.0 - 2,911
Female - - - - - - - -
Male 2,911 12.4 ± 10.0 10.0 0.0 89.0 - 2,911
Gender vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 13.7 ± 11.9 11.0 0.0 82.0 1,885 2,911
Female - - - - - - - -
Male 1,026 13.7 ± 11.9 11.0 0.0 82.0 1,885 2,911
Race Category vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 12.4 ± 10.0 10.0 0.0 89.0 - 2,911
White 2,651 12.5 ± 10.1 10.0 0.0 89.0 - 2,651
African American 99 11.7 ± 10.7 9.0 0.0 70.0 - 99
Asian 85 11.1 ± 8.9 8.0 0.0 40.0 - 85
Native Hawaiian or Other Pacific Islander 3 15.0 ± 5.3 17.0 9.0 19.0 - 3
American Indian or Alaskan Native 1 46.0 - 46.0 46.0 46.0 - 1
Multiracial 30 11.8 ± 7.5 9.5 1.0 30.0 - 30
Unknown 42 10.7 ± 7.2 9.5 1.0 36.0 - 42
Race Category vs Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 13.7 ± 11.9 11.0 0.0 82.0 1,885 2,911
White 896 14.0 ± 12.0 11.0 0.0 82.0 1,755 2,651
African American 41 10.1 ± 9.5 8.0 0.0 35.0 58 99
Asian 49 9.3 ± 7.0 9.0 0.0 29.0 36 85
Native Hawaiian or Other Pacific Islander 3 32.7 ± 4.0 32.0 29.0 37.0 - 3
American Indian or Alaskan Native 1 61.0 - 61.0 61.0 61.0 - 1
Multiracial 14 15.9 ± 11.8 11.5 1.0 37.0 16 30
Unknown 22 12.3 ± 10.7 9.0 1.0 39.0 20 42