timest1p waso
Name
timest2p
Label
Percent Time in Stage 2
Description

Percent of sleep time in stage 2

Calculation
timest2p = tmstg2p
Units
percent
Type
numeric
Tags
timest2p
SHHS Visit Number vs Percent Time in Stage 2
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,642 56.5 ± 11.7 56.8 10.9 100.0 162 5,804
Visit 2 2,620 57.7 ± 11.1 58.0 20.0 98.0 1,460 4,080
CVD Outcomes - - - - - - - -
Age at SHHS1 vs Percent Time in Stage 2
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 56.5 ± 11.7 56.8 10.9 100.0 162 5,804
35-44 years 336 56.1 ± 10.1 55.9 23.2 81.1 6 342
45-54 years 999 55.9 ± 10.6 56.2 19.3 100.0 18 1,017
55-64 years 1,734 55.8 ± 11.6 56.0 16.3 90.5 35 1,769
65-74 years 1,572 56.9 ± 12.1 57.5 15.6 88.1 45 1,617
75-84 years 907 57.9 ± 12.7 58.8 10.9 91.0 48 955
85 years or older 94 60.0 ± 13.4 60.5 15.0 90.6 10 104
Age at SHHS1 vs Percent Time in Stage 2
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,620 57.7 ± 11.1 58.0 20.0 98.0 1,460 4,080
35-44 years 136 55.5 ± 9.7 55.5 28.0 82.0 48 184
45-54 years 495 55.9 ± 10.6 56.0 23.0 89.0 212 707
55-64 years 844 57.1 ± 10.8 57.0 20.0 86.0 477 1,321
65-74 years 776 59.2 ± 11.2 60.0 26.0 98.0 424 1,200
75-84 years 348 58.9 ± 11.8 59.0 26.0 92.0 276 624
85 years or older 21 61.9 ± 9.6 62.0 46.0 79.0 23 44
Gender vs Percent Time in Stage 2
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 56.5 ± 11.7 56.8 10.9 100.0 162 5,804
Male 2,691 60.4 ± 10.6 60.7 20.0 100.0 74 2,765
Female 2,951 53.0 ± 11.6 53.0 10.9 91.0 88 3,039
Gender vs Percent Time in Stage 2
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,620 57.7 ± 11.1 58.0 20.0 98.0 1,460 4,080
Male 1,204 61.8 ± 9.8 62.0 30.0 94.0 657 1,861
Female 1,416 54.3 ± 10.9 54.0 20.0 98.0 803 2,219
Race vs Percent Time in Stage 2
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 56.5 ± 11.7 56.8 10.9 100.0 162 5,804
White 4,785 56.3 ± 11.7 56.5 10.9 91.0 122 4,907
Black 477 60.1 ± 11.6 60.6 23.2 100.0 38 515
Other 380 55.6 ± 11.0 55.6 28.1 86.4 2 382
Race vs Percent Time in Stage 2
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,620 57.7 ± 11.1 58.0 20.0 98.0 1,460 4,080
White 2,286 57.5 ± 10.9 58.0 20.0 94.0 1,301 3,587
Black 175 61.7 ± 11.7 62.0 26.0 98.0 81 256
Other 159 56.1 ± 11.2 56.0 28.0 84.0 78 237