Age

Visit vs Percentage of total sleep duration in REM from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 2,911 19.0 ± 7.0 19.0 0.0 44.0 - 2,911
Visit 2 1,026 18.9 ± 7.5 19.0 0.0 44.0 1,885 2,911
Age at Sleep Visit 1 vs Percentage of total sleep duration in REM from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 19.0 ± 7.0 19.0 0.0 44.0 - 2,911
67.0 to 72.0 years 728 19.9 ± 6.5 20.0 0.0 38.0 - 728
72.0 to 76.0 years 728 19.6 ± 6.9 20.0 0.0 42.0 - 728
76.0 to 80.0 years 728 18.8 ± 7.2 19.0 0.0 44.0 - 728
80.0 to 90.0 years 727 17.7 ± 7.1 18.0 0.0 36.0 - 727
Gender vs Percentage of total sleep duration in REM from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 19.0 ± 7.0 19.0 0.0 44.0 - 2,911
Female - - - - - - - -
Male 2,911 19.0 ± 7.0 19.0 0.0 44.0 - 2,911
Gender vs Percentage of total sleep duration in REM from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 18.9 ± 7.5 19.0 0.0 44.0 1,885 2,911
Female - - - - - - - -
Male 1,026 18.9 ± 7.5 19.0 0.0 44.0 1,885 2,911
Race Category vs Percentage of total sleep duration in REM from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 19.0 ± 7.0 19.0 0.0 44.0 - 2,911
White 2,651 18.9 ± 7.0 19.0 0.0 44.0 - 2,651
African American 99 20.2 ± 7.7 21.0 0.0 35.0 - 99
Asian 85 19.9 ± 5.7 20.0 9.0 34.0 - 85
Native Hawaiian or Other Pacific Islander 3 18.7 ± 5.1 20.0 13.0 23.0 - 3
American Indian or Alaskan Native 1 21.0 - 21.0 21.0 21.0 - 1
Multiracial 30 19.6 ± 6.7 20.5 4.0 32.0 - 30
Unknown 42 21.1 ± 6.4 22.0 5.0 33.0 - 42
Race Category vs Percentage of total sleep duration in REM from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 18.9 ± 7.5 19.0 0.0 44.0 1,885 2,911
White 896 19.0 ± 7.5 19.0 0.0 44.0 1,755 2,651
African American 41 18.0 ± 8.8 18.0 0.0 35.0 58 99
Asian 49 18.3 ± 7.8 19.0 0.0 36.0 36 85
Native Hawaiian or Other Pacific Islander 3 6.0 ± 10.4 0.0 0.0 18.0 - 3
American Indian or Alaskan Native 1 29.0 - 29.0 29.0 29.0 - 1
Multiracial 14 17.0 ± 5.4 18.0 5.0 24.0 16 30
Unknown 22 19.7 ± 7.0 19.5 5.0 36.0 20 42