Gender

Visit vs How much time do you think you actually slept last night?
N Mean StdDev Median Min Max Unknown Total
Visit 1 2,911 371.4 ± 93.2 375.0 0.0 660.0 - 2,911
Visit 2 1,026 377.2 ± 98.5 390.0 0.0 660.0 1,885 2,911
Age at Sleep Visit 1 vs How much time do you think you actually slept last night?
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 371.4 ± 93.2 375.0 0.0 660.0 - 2,911
67.0 to 72.0 years 728 368.1 ± 87.5 375.0 0.0 600.0 - 728
72.0 to 76.0 years 728 370.2 ± 86.3 375.0 60.0 645.0 - 728
76.0 to 80.0 years 728 370.0 ± 95.9 375.0 0.0 660.0 - 728
80.0 to 90.0 years 727 377.4 ± 102.2 390.0 0.0 630.0 - 727
Gender vs How much time do you think you actually slept last night?
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 371.4 ± 93.2 375.0 0.0 660.0 - 2,911
Female - - - - - - - -
Male 2,911 371.4 ± 93.2 375.0 0.0 660.0 - 2,911
Gender vs How much time do you think you actually slept last night?
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 377.2 ± 98.5 390.0 0.0 660.0 1,885 2,911
Female - - - - - - - -
Male 1,026 377.2 ± 98.5 390.0 0.0 660.0 1,885 2,911
Race Category vs How much time do you think you actually slept last night?
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 371.4 ± 93.2 375.0 0.0 660.0 - 2,911
White 2,651 372.2 ± 92.2 380.0 0.0 660.0 - 2,651
African American 99 356.2 ± 110.5 360.0 0.0 570.0 - 99
Asian 85 374.6 ± 100.7 390.0 0.0 600.0 - 85
Native Hawaiian or Other Pacific Islander 3 316.0 ± 70.1 330.0 240.0 378.0 - 3
American Indian or Alaskan Native 1 360.0 - 360.0 360.0 360.0 - 1
Multiracial 30 375.8 ± 73.8 390.0 260.0 570.0 - 30
Unknown 42 353.7 ± 110.0 360.0 120.0 570.0 - 42
Race Category vs How much time do you think you actually slept last night?
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 377.2 ± 98.5 390.0 0.0 660.0 1,885 2,911
White 896 376.8 ± 98.4 390.0 0.0 660.0 1,755 2,651
African American 41 373.0 ± 122.0 360.0 0.0 600.0 58 99
Asian 49 387.1 ± 98.2 390.0 120.0 600.0 36 85
Native Hawaiian or Other Pacific Islander 3 320.0 ± 17.3 330.0 300.0 330.0 - 3
American Indian or Alaskan Native 1 450.0 - 450.0 450.0 450.0 - 1
Multiracial 14 355.7 ± 62.6 360.0 240.0 480.0 16 30
Unknown 22 398.4 ± 80.6 420.0 195.0 510.0 20 42