Race

Visit vs Number of shift (sleep stages shift) from stage 2 to stage 1 sleep per hour of sleep from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 5 732 0.01 ± 0.05 0.0 0.0 0.6 3 735
Participant's age (category) vs Number of shift (sleep stages shift) from stage 2 to stage 1 sleep per hour of sleep from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 655 0.01 ± 0.05 0.0 0.0 0.6 3 658
5-14 yrs old 64 0.002 ± 0.02 0.0 0.0 0.1 - 64
15-24 yrs old 112 0.01 ± 0.05 0.0 0.0 0.3 - 112
25-34 yrs old 62 0.02 ± 0.08 0.0 0.0 0.6 - 62
35-44 years 97 0.01 ± 0.04 0.0 0.0 0.3 1 98
45-54 years 146 0.01 ± 0.04 0.0 0.0 0.3 2 148
55-64 years 84 0.01 ± 0.07 0.0 0.0 0.4 - 84
65-74 years 57 0.002 ± 0.02 0.0 0.0 0.1 - 57
75-84 years 31 0.03 ± 0.07 0.0 0.0 0.3 - 31
85 years or older 2 0.0 ± 0.0 0.0 0.0 0.0 - 2
Participant's sex vs Number of shift (sleep stages shift) from stage 2 to stage 1 sleep per hour of sleep from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 0.01 ± 0.05 0.0 0.0 0.6 3 735
Female 403 0.01 ± 0.05 0.0 0.0 0.6 3 406
Male 329 0.01 ± 0.04 0.0 0.0 0.4 - 329
Participant's race vs Number of shift (sleep stages shift) from stage 2 to stage 1 sleep per hour of sleep from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 732 0.01 ± 0.05 0.0 0.0 0.6 3 735
White 302 0.01 ± 0.06 0.0 0.0 0.6 2 304
Black 408 0.007 ± 0.03 0.0 0.0 0.3 1 409
More than one race 22 0.01 ± 0.04 0.0 0.0 0.1 - 22