Name
poslprdp
Label
Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Description

Conventionally this variable would be called total sleep time (TST)(i.e. total time spent in stage 1 or greater).

Units
minutes
Type
numeric
Visit vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 2,911 355.5 ± 69.4 360.0 54.0 615.0 - 2,911
Visit 2 1,026 342.3 ± 78.1 347.0 39.0 626.0 1,885 2,911
Age at Sleep Visit 1 vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 355.5 ± 69.4 360.0 54.0 615.0 - 2,911
67.0 to 72.0 years 728 360.3 ± 68.1 363.0 77.0 615.0 - 728
72.0 to 76.0 years 728 357.8 ± 66.7 359.0 54.0 584.0 - 728
76.0 to 80.0 years 728 352.0 ± 70.6 360.0 62.0 511.0 - 728
80.0 to 90.0 years 727 352.0 ± 71.9 358.0 95.0 574.0 - 727
Gender vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 355.5 ± 69.4 360.0 54.0 615.0 - 2,911
Female - - - - - - - -
Male 2,911 355.5 ± 69.4 360.0 54.0 615.0 - 2,911
Gender vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 342.3 ± 78.1 347.0 39.0 626.0 1,885 2,911
Female - - - - - - - -
Male 1,026 342.3 ± 78.1 347.0 39.0 626.0 1,885 2,911
Race Category vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 2,911 355.5 ± 69.4 360.0 54.0 615.0 - 2,911
White 2,651 355.4 ± 69.3 359.0 54.0 584.0 - 2,651
African American 99 355.7 ± 85.7 364.0 102.0 615.0 - 99
Asian 85 353.9 ± 56.9 361.0 176.0 475.0 - 85
Native Hawaiian or Other Pacific Islander 3 293.0 ± 28.2 304.0 261.0 314.0 - 3
American Indian or Alaskan Native 1 327.0 - 327.0 327.0 327.0 - 1
Multiracial 30 375.1 ± 59.5 383.5 253.0 476.0 - 30
Unknown 42 355.4 ± 65.7 362.0 171.0 467.0 - 42
Race Category vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from type II polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 1,026 342.3 ± 78.1 347.0 39.0 626.0 1,885 2,911
White 896 341.2 ± 78.6 346.0 39.0 626.0 1,755 2,651
African American 41 334.1 ± 94.3 334.0 119.0 586.0 58 99
Asian 49 356.4 ± 61.2 358.0 222.0 485.0 36 85
Native Hawaiian or Other Pacific Islander 3 245.7 ± 47.0 247.0 198.0 292.0 - 3
American Indian or Alaskan Native 1 404.0 - 404.0 404.0 404.0 - 1
Multiracial 14 358.9 ± 56.5 386.0 229.0 411.0 16 30
Unknown 22 372.0 ± 55.9 373.5 262.0 466.0 20 42