supinep timest1p
Name
times34p
Label
Percent Time in Stage 3/4
Description

Percent of sleep time in stage 3-4 [100*(Number of minutes scored as stage 3-4) / (total sleep time)]

Calculation
times34p = tmstg34p
Units
percent
Type
numeric
Tags
times34p
SHHS Visit Number vs Percent Time in Stage 3/4
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,642 18.2 ± 11.9 17.0 0.0 70.0 162 5,804
Visit 2 2,620 15.9 ± 11.0 15.0 0.0 59.0 1,460 4,080
CVD Outcomes - - - - - - 5,042 5,042
Age at SHHS1 vs Percent Time in Stage 3/4
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 18.2 ± 11.9 17.0 0.0 70.0 162 5,804
39.0 to 55.0 years 1,424 18.5 ± 10.4 18.0 0.0 65.0 27 1,451
55.0 to 63.0 years 1,422 18.5 ± 11.5 18.0 0.0 63.0 29 1,451
63.0 to 72.0 years 1,417 17.8 ± 12.3 17.0 0.0 67.0 34 1,451
72.0 to 100.0 years 1,379 18.0 ± 13.2 16.0 0.0 70.0 72 1,451
Gender vs Percent Time in Stage 3/4
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 18.2 ± 11.9 17.0 0.0 70.0 162 5,804
Female 2,951 22.4 ± 11.6 22.0 0.0 70.0 88 3,039
Male 2,691 13.6 ± 10.4 12.0 0.0 61.0 74 2,765
Gender vs Percent Time in Stage 3/4
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,620 15.9 ± 11.0 15.0 0.0 59.0 1,460 4,080
Female 1,416 20.0 ± 10.7 19.0 0.0 59.0 803 2,219
Male 1,204 11.2 ± 9.1 9.5 0.0 51.0 657 1,861
Race vs Percent Time in Stage 3/4
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 18.2 ± 11.9 17.0 0.0 70.0 162 5,804
white 4,785 18.5 ± 11.9 18.0 0.0 70.0 122 4,907
black 477 14.9 ± 11.5 13.0 0.0 53.0 38 515
native amer/alaskan 11 22.7 ± 13.7 22.0 0.0 41.0 - 11
asian/pacific islander 88 20.0 ± 12.0 20.0 0.0 57.0 - 88
hispanic/mex. amer 278 18.5 ± 10.7 18.0 0.0 45.0 2 280
other 3 14.3 ± 10.3 17.0 3.0 23.0 - 3
Race vs Percent Time in Stage 3/4
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,620 15.9 ± 11.0 15.0 0.0 59.0 1,460 4,080
white 2,286 16.1 ± 10.9 15.0 0.0 59.0 1,301 3,587
black 175 11.8 ± 10.5 10.0 0.0 50.0 81 256
native amer/alaskan 3 19.0 ± 13.1 21.0 5.0 31.0 5 8
asian/pacific islander 34 17.1 ± 12.7 14.5 0.0 44.0 14 48
hispanic/mex. amer 121 18.1 ± 11.0 18.0 0.0 59.0 59 180
other 1 4.0 - 4.0 4.0 4.0 - 1