Race

Sleep Heart Health Study (SHHS) Visit Number vs Total duration of stage 1 sleep from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,642 19.1 ± 13.2 16.5 0.0 114.0 162 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,620 20.9 ± 13.5 18.0 0.0 117.0 1,460 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Total duration of stage 1 sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 19.1 ± 13.2 16.5 0.0 114.0 162 5,804
35-44 years 336 18.0 ± 12.3 17.0 1.5 80.0 6 342
45-54 years 999 17.6 ± 11.7 15.0 0.0 77.0 18 1,017
55-64 years 1,734 19.0 ± 12.5 16.5 0.0 93.0 35 1,769
65-74 years 1,572 20.4 ± 14.0 17.5 0.0 97.0 45 1,617
75-84 years 907 19.0 ± 14.4 15.5 0.0 114.0 48 955
85 years or older 94 21.5 ± 15.1 18.5 0.0 81.5 10 104
Gender of the participant vs Total duration of stage 1 sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 19.1 ± 13.2 16.5 0.0 114.0 162 5,804
Male 2,691 22.3 ± 14.7 19.5 0.0 114.0 74 2,765
Female 2,951 16.3 ± 10.9 14.0 0.0 83.0 88 3,039
Gender of the participant vs Total duration of stage 1 sleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,620 20.9 ± 13.5 18.0 0.0 117.0 1,460 4,080
Male 1,204 24.0 ± 14.4 21.0 2.0 90.0 657 1,861
Female 1,416 18.3 ± 12.2 15.5 0.0 117.0 803 2,219
Race of the participant vs Total duration of stage 1 sleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 19.1 ± 13.2 16.5 0.0 114.0 162 5,804
White 4,785 19.2 ± 13.2 16.5 0.0 114.0 122 4,907
Black 477 18.9 ± 13.5 16.5 0.0 80.0 38 515
Other 380 19.3 ± 13.0 16.5 0.5 107.0 2 382
Race of the participant vs Total duration of stage 1 sleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,620 20.9 ± 13.5 18.0 0.0 117.0 1,460 4,080
White 2,286 20.7 ± 13.3 18.0 0.0 117.0 1,301 3,587
Black 175 24.2 ± 16.3 20.0 2.0 94.0 81 256
Other 159 20.0 ± 12.8 17.0 2.0 81.0 78 237