Name
waso
Label
Wake After Sleep Onset
Description

Total amount of time spent awake after going to sleep [(time in bed) - (sleep latency) - (total sleep time)]

Calculation
waso = timebedp - slpprdp - slplatp
Units
minute
Type
numeric
Tags
SHHS Visit Number vs Wake After Sleep Onset
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 61.2 ± 44.5 49.5 -137.5 368.0 - 5,804
Visit 2 2,651 80.1 ± 54.9 68.0 -51.0 378.0 1,429 4,080
CVD Outcomes - - - - - - 5,042 5,042
Age at SHHS1 vs Wake After Sleep Onset
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 61.2 ± 44.5 49.5 -137.5 368.0 - 5,804
39.0 to 55.0 years 1,451 44.7 ± 34.3 35.5 -132.0 244.5 - 1,451
55.0 to 63.0 years 1,451 54.8 ± 36.9 44.5 -28.0 338.5 - 1,451
63.0 to 72.0 years 1,451 67.8 ± 46.5 57.0 -137.5 304.0 - 1,451
72.0 to 100.0 years 1,451 77.4 ± 51.0 66.0 -40.0 368.0 - 1,451
Gender vs Wake After Sleep Onset
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 61.2 ± 44.5 49.5 -137.5 368.0 - 5,804
Female 3,039 56.8 ± 41.3 45.0 -126.5 327.0 - 3,039
Male 2,765 65.9 ± 47.4 54.5 -137.5 368.0 - 2,765
Gender vs Wake After Sleep Onset
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 80.1 ± 54.9 68.0 -51.0 378.0 1,429 4,080
Female 1,425 73.0 ± 50.6 61.0 -51.0 335.0 794 2,219
Male 1,226 88.2 ± 58.5 75.0 -18.0 378.0 635 1,861
Race vs Wake After Sleep Onset
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 61.2 ± 44.5 49.5 -137.5 368.0 - 5,804
white 4,907 61.3 ± 43.9 50.0 -137.5 368.0 - 4,907
black 515 67.4 ± 50.7 52.5 -124.5 269.0 - 515
native amer/alaskan 11 47.1 ± 26.2 40.5 11.5 98.0 - 11
asian/pacific islander 88 47.7 ± 39.3 40.5 0.0 231.0 - 88
hispanic/mex. amer 280 52.5 ± 40.6 38.5 -14.5 244.5 - 280
other 3 123.5 ± 132.7 55.0 39.0 276.5 - 3
Race vs Wake After Sleep Onset
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 80.1 ± 54.9 68.0 -51.0 378.0 1,429 4,080
white 2,311 78.7 ± 52.9 68.0 -51.0 378.0 1,276 3,587
black 181 108.2 ± 75.1 92.0 5.0 375.0 75 256
native amer/alaskan 3 77.0 ± 26.3 88.0 47.0 96.0 5 8
asian/pacific islander 34 65.9 ± 39.2 56.0 14.0 186.0 14 48
hispanic/mex. amer 121 68.0 ± 47.9 56.0 5.0 210.0 59 180
other 1 34.0 - 34.0 34.0 34.0 - 1