Age

Visit vs Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 2,911 76.0 ± 12.0 78.0 17.0 98.0 - 2,911
Visit 2 1,026 73.9 ± 13.2 76.0 12.0 99.0 1,885 2,911
Age at Sleep Visit 1 vs Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 76.0 ± 12.0 78.0 17.0 98.0 - 2,911
67.0 to 72.0 years 728 79.1 ± 11.2 81.0 28.0 98.0 - 728
72.0 to 76.0 years 728 77.2 ± 11.4 79.0 19.0 97.0 - 728
76.0 to 80.0 years 728 74.8 ± 12.4 77.0 17.0 97.0 - 728
80.0 to 90.0 years 727 73.2 ± 12.2 75.0 26.0 97.0 - 727
Gender vs Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 76.0 ± 12.0 78.0 17.0 98.0 - 2,911
Female - - - - - - - -
Male 2,911 76.0 ± 12.0 78.0 17.0 98.0 - 2,911
Gender vs Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 73.9 ± 13.2 76.0 12.0 99.0 1,885 2,911
Female - - - - - - - -
Male 1,026 73.9 ± 13.2 76.0 12.0 99.0 1,885 2,911
Race Category vs Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 76.0 ± 12.0 78.0 17.0 98.0 - 2,911
White 2,651 76.1 ± 12.0 78.0 17.0 98.0 - 2,651
African American 99 71.9 ± 14.6 73.0 26.0 95.0 - 99
Asian 85 76.6 ± 11.1 77.0 52.0 96.0 - 85
Native Hawaiian or Other Pacific Islander 3 74.0 ± 9.8 77.0 63.0 82.0 - 3
American Indian or Alaskan Native 1 75.0 - 75.0 75.0 75.0 - 1
Multiracial 30 79.0 ± 9.7 80.0 58.0 94.0 - 30
Unknown 42 77.3 ± 11.5 79.5 42.0 94.0 - 42
Race Category vs Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 73.9 ± 13.2 76.0 12.0 99.0 1,885 2,911
White 896 73.9 ± 13.2 75.5 12.0 99.0 1,755 2,651
African American 41 71.2 ± 17.3 73.0 27.0 98.0 58 99
Asian 49 76.4 ± 10.9 77.0 46.0 91.0 36 85
Native Hawaiian or Other Pacific Islander 3 61.3 ± 15.9 57.0 48.0 79.0 - 3
American Indian or Alaskan Native 1 83.0 - 83.0 83.0 83.0 - 1
Multiracial 14 72.9 ± 9.9 75.5 48.0 86.0 16 30
Unknown 22 78.2 ± 10.4 80.0 58.0 91.0 20 42