Gender

Visit vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 2,911 1.1 ± 3.8 0.0 0.0 62.0 - 2,911
Visit 2 1,026 0.7 ± 3.4 0.0 0.0 55.0 1,885 2,911
Age at Sleep Visit 1 vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 1.1 ± 3.8 0.0 0.0 62.0 - 2,911
67.0 to 72.0 years 728 0.8 ± 2.8 0.0 0.0 33.0 - 728
72.0 to 76.0 years 728 0.9 ± 2.8 0.0 0.0 35.0 - 728
76.0 to 80.0 years 728 1.3 ± 4.3 0.0 0.0 45.0 - 728
80.0 to 90.0 years 727 1.6 ± 4.7 0.0 0.0 62.0 - 727
Gender vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 1.1 ± 3.8 0.0 0.0 62.0 - 2,911
Female - - - - - - - -
Male 2,911 1.1 ± 3.8 0.0 0.0 62.0 - 2,911
Gender vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 0.7 ± 3.4 0.0 0.0 55.0 1,885 2,911
Female - - - - - - - -
Male 1,026 0.7 ± 3.4 0.0 0.0 55.0 1,885 2,911
Race Category vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 1.1 ± 3.8 0.0 0.0 62.0 - 2,911
White 2,651 1.1 ± 3.7 0.0 0.0 62.0 - 2,651
African American 99 1.4 ± 5.4 0.0 0.0 45.0 - 99
Asian 85 0.9 ± 3.4 0.0 0.0 26.0 - 85
Native Hawaiian or Other Pacific Islander 3 1.7 ± 2.9 0.0 0.0 5.0 - 3
American Indian or Alaskan Native 1 19.0 - 19.0 19.0 19.0 - 1
Multiracial 30 0.7 ± 1.7 0.0 0.0 6.0 - 30
Unknown 42 0.3 ± 0.7 0.0 0.0 3.0 - 42
Race Category vs Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 0.7 ± 3.4 0.0 0.0 55.0 1,885 2,911
White 896 0.8 ± 3.5 0.0 0.0 55.0 1,755 2,651
African American 41 0.8 ± 2.8 0.0 0.0 17.0 58 99
Asian 49 0.3 ± 1.2 0.0 0.0 7.0 36 85
Native Hawaiian or Other Pacific Islander 3 1.7 ± 2.9 0.0 0.0 5.0 - 3
American Indian or Alaskan Native 1 17.0 - 17.0 17.0 17.0 - 1
Multiracial 14 0.6 ± 1.3 0.0 0.0 5.0 16 30
Unknown 22 0.09 ± 0.3 0.0 0.0 1.0 20 42