Name
time_bed
Label
Total Time in Bed
Description

Time from lights out to lights on, rounded to nearest minute

Calculation
time_bed = timebedp
Units
minutes
Type
numeric
Tags
tib
Sleep Heart Health Study (SHHS) Visit Number vs Total Time in Bed
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 435.3 ± 59.3 443.5 117.0 543.0 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 474.6 ± 70.5 475.0 238.0 697.0 1,429 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Total Time in Bed
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 435.3 ± 59.3 443.5 117.0 543.0 - 5,804
35-44 years 342 430.6 ± 58.6 434.8 236.5 533.5 - 342
45-54 years 1,017 435.5 ± 59.4 442.5 117.0 537.0 - 1,017
55-64 years 1,769 434.2 ± 56.7 439.5 211.5 542.0 - 1,769
65-74 years 1,617 437.3 ± 59.5 447.5 168.5 541.5 - 1,617
75-84 years 955 435.5 ± 62.6 447.0 211.0 543.0 - 955
85 years or older 104 436.6 ± 68.8 446.0 239.0 532.5 - 104
Gender vs Total Time in Bed
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 435.3 ± 59.3 443.5 117.0 543.0 - 5,804
Male 2,765 431.2 ± 59.0 438.0 117.0 543.0 - 2,765
Female 3,039 439.1 ± 59.3 448.0 211.0 543.0 - 3,039
Gender vs Total Time in Bed
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 474.6 ± 70.5 475.0 238.0 697.0 1,429 4,080
Male 1,226 469.3 ± 70.9 469.0 238.0 673.0 635 1,861
Female 1,425 479.1 ± 69.9 478.0 242.0 697.0 794 2,219
Race vs Total Time in Bed
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 435.3 ± 59.3 443.5 117.0 543.0 - 5,804
White 4,907 435.8 ± 58.6 444.0 168.5 543.0 - 4,907
Black 515 423.8 ± 66.1 427.5 117.0 537.0 - 515
Other 382 444.7 ± 55.8 452.5 262.5 536.5 - 382
Race vs Total Time in Bed
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 474.6 ± 70.5 475.0 238.0 697.0 1,429 4,080
White 2,311 473.0 ± 69.5 474.0 238.0 697.0 1,276 3,587
Black 181 489.3 ± 86.0 486.0 241.0 682.0 75 256
Other 159 480.2 ± 63.8 477.0 293.0 649.0 78 237