Name

timest1p

Label

Percent Time in Stage 1

Description

Percent of sleep time in stage 1

Calculation
timest1p = tmstg1p
Units
percent
Type
numeric
Visit vs Percent Time in Stage 1
N Mean StdDev Median Min Max Unknown Total
Visit 5 701 5.0 ± 3.9 4.1 0.5 47.4 34 735
Age at time of visit vs Percent Time in Stage 1
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 629 5.1 ± 4.0 4.1 0.5 47.4 29 658
5-14 yrs old 59 3.2 ± 2.1 2.7 0.6 11.5 5 64
15-24 yrs old 111 4.2 ± 2.7 3.7 0.7 20.3 1 112
25-34 yrs old 60 4.0 ± 2.1 3.5 0.8 9.6 2 62
35-44 years 94 4.7 ± 3.4 3.9 0.5 18.9 4 98
45-54 years 143 5.0 ± 3.0 4.3 0.7 16.3 5 148
55-64 years 80 6.0 ± 4.2 5.1 1.2 21.3 4 84
65-74 years 52 6.8 ± 6.6 5.5 0.6 47.4 5 57
75-84 years 28 10.1 ± 6.8 8.8 2.2 28.9 3 31
85 years or older 2 12.7 ± 3.7 12.7 10.0 15.3 - 2
Sex vs Percent Time in Stage 1
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 701 5.0 ± 3.9 4.1 0.5 47.4 34 735
Female 388 4.3 ± 2.6 3.8 0.5 20.3 18 406
Male 313 6.0 ± 4.8 4.7 0.6 47.4 16 329
Race vs Percent Time in Stage 1
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 701 5.0 ± 3.9 4.1 0.5 47.4 34 735
White 292 5.3 ± 3.6 4.5 0.6 21.3 12 304
Black 387 4.9 ± 4.2 3.9 0.5 47.4 22 409
Other 22 3.8 ± 1.8 3.6 1.1 7.1 - 22