Name
pcttstrem
Label
Percentage of NREM sleep among total sleep duration from type I polysomnography
Description

Conventionally, total sleep duration would be called total sleep time (TST).

Units
percentage
Type
numeric
Study visit number vs Percentage of NREM sleep among total sleep duration from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 1,123 16.5 ± 6.0 16.6 0.0 37.9 - 1,123
Visit 2 758 16.3 ± 6.2 16.5 0.0 37.3 - 758
Visit 3 566 15.3 ± 6.1 15.5 0.0 38.2 - 566
Visit 4 121 15.0 ± 5.8 14.3 1.4 31.6 - 121
Visit 5 2 15.8 ± 9.9 15.8 8.8 22.8 - 2
Sex of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,123 16.5 ± 6.0 16.6 0.0 37.9 - 1,123
Male 608 16.0 ± 5.9 16.2 0.0 37.9 - 608
Female 515 17.0 ± 6.1 17.3 0.0 37.1 - 515
Sex of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 758 16.3 ± 6.2 16.5 0.0 37.3 - 758
Male 406 16.0 ± 6.1 16.1 0.0 34.3 - 406
Female 352 16.6 ± 6.3 16.9 0.0 37.3 - 352
Sex of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 15.3 ± 6.1 15.5 0.0 38.2 - 566
Male 304 15.4 ± 5.9 15.5 0.0 38.2 - 304
Female 262 15.3 ± 6.3 15.5 0.3 34.7 - 262
Sex of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 15.0 ± 5.8 14.3 1.4 31.6 - 121
Male 67 14.2 ± 5.6 13.8 1.4 26.4 - 67
Female 54 16.0 ± 6.0 15.6 6.1 31.6 - 54
Sex of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 15.8 ± 9.9 15.8 8.8 22.8 - 2
Male - - - - - - - -
Female 2 15.8 ± 9.9 15.8 8.8 22.8 - 2
Race of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,123 16.5 ± 6.0 16.6 0.0 37.9 - 1,123
White 1,065 16.6 ± 6.1 16.8 0.0 37.9 - 1,065
Black 23 15.3 ± 4.7 13.9 8.2 26.8 - 23
Hispanic 13 15.3 ± 4.4 16.6 8.2 22.4 - 13
Native American 10 17.2 ± 4.4 17.5 10.7 24.0 - 10
Asian 12 12.8 ± 4.9 13.4 4.9 20.1 - 12
Race of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 758 16.3 ± 6.2 16.5 0.0 37.3 - 758
White 734 16.3 ± 6.2 16.5 0.0 37.3 - 734
Black 8 16.7 ± 5.7 16.6 7.2 24.2 - 8
Hispanic 6 14.7 ± 8.4 14.8 3.0 26.2 - 6
Native American 6 14.2 ± 3.3 14.1 10.5 18.7 - 6
Asian 4 17.0 ± 6.1 16.3 10.3 25.0 - 4
Race of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 15.3 ± 6.1 15.5 0.0 38.2 - 566
White 549 15.4 ± 6.1 15.5 0.0 38.2 - 549
Black 4 12.0 ± 5.8 13.0 4.0 18.0 - 4
Hispanic 5 12.1 ± 7.8 16.5 1.7 19.2 - 5
Native American 4 19.2 ± 5.2 18.2 14.4 26.1 - 4
Asian 4 13.7 ± 1.1 13.5 12.6 15.0 - 4
Race of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 15.0 ± 5.8 14.3 1.4 31.6 - 121
White 113 15.0 ± 5.9 14.3 1.4 31.6 - 113
Black 1 12.6 - 12.6 12.6 12.6 - 1
Hispanic 2 14.1 ± 8.0 14.1 8.4 19.7 - 2
Native American 2 20.6 ± 8.1 20.6 14.8 26.3 - 2
Asian 3 16.1 ± 3.5 14.5 13.7 20.2 - 3
Race of the participant vs Percentage of NREM sleep among total sleep duration from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 15.8 ± 9.9 15.8 8.8 22.8 - 2
White 2 15.8 ± 9.9 15.8 8.8 22.8 - 2
Black - - - - - - - -
Hispanic - - - - - - - -
Native American - - - - - - - -
Asian - - - - - - - -