Name
pcttststagen1
Label
Percentage of stage 1 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 stage 1 sleep among total sleep duration from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 1,123 10.0 ± 6.3 8.6 0.7 88.4 - 1,123
Visit 2 758 10.3 ± 5.8 9.3 1.0 38.0 - 758
Visit 3 566 11.5 ± 6.5 10.0 1.5 38.9 - 566
Visit 4 121 11.9 ± 7.4 10.5 1.1 43.6 - 121
Visit 5 2 6.1 ± 2.8 6.1 4.1 8.1 - 2
Incident Outcomes Tracking - - - - - - - -
Sex of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,123 10.0 ± 6.3 8.6 0.7 88.4 - 1,123
Male 608 11.1 ± 7.1 9.6 1.5 88.4 - 608
Female 515 8.8 ± 4.8 7.4 0.7 28.0 - 515
Sex of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 758 10.3 ± 5.8 9.3 1.0 38.0 - 758
Male 406 11.5 ± 6.3 10.2 1.0 38.0 - 406
Female 352 9.1 ± 4.8 8.6 1.0 31.8 - 352
Sex of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 11.5 ± 6.5 10.0 1.5 38.9 - 566
Male 304 13.0 ± 7.1 11.1 1.9 38.9 - 304
Female 262 9.7 ± 5.3 8.6 1.5 36.4 - 262
Sex of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 11.9 ± 7.4 10.5 1.1 43.6 - 121
Male 67 14.0 ± 8.2 12.0 1.1 43.6 - 67
Female 54 9.3 ± 5.4 8.3 1.5 25.6 - 54
Sex of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 6.1 ± 2.8 6.1 4.1 8.1 - 2
Male - - - - - - - -
Female 2 6.1 ± 2.8 6.1 4.1 8.1 - 2
Race of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,123 10.0 ± 6.3 8.6 0.7 88.4 - 1,123
Asian 12 11.0 ± 6.1 9.3 4.8 26.0 - 12
Black 23 8.3 ± 3.1 7.5 3.5 13.6 - 23
Hispanic 13 9.3 ± 4.8 9.1 2.6 19.1 - 13
Native American 10 9.5 ± 6.1 8.7 2.7 22.9 - 10
White 1,065 10.1 ± 6.3 8.6 0.7 88.4 - 1,065
Race of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 758 10.3 ± 5.8 9.3 1.0 38.0 - 758
Asian 4 11.0 ± 2.3 12.0 7.6 12.3 - 4
Black 8 10.7 ± 5.3 11.3 3.4 17.3 - 8
Hispanic 6 17.1 ± 8.7 16.1 5.4 30.3 - 6
Native American 6 11.7 ± 7.8 13.2 1.0 22.3 - 6
White 734 10.3 ± 5.8 9.2 1.0 38.0 - 734
Race of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 11.5 ± 6.5 10.0 1.5 38.9 - 566
Asian 4 12.5 ± 2.4 12.6 10.3 14.7 - 4
Black 4 11.4 ± 3.9 10.9 7.4 16.4 - 4
Hispanic 5 15.3 ± 7.8 12.4 7.5 26.3 - 5
Native American 4 12.4 ± 11.2 9.4 2.3 28.4 - 4
White 549 11.4 ± 6.5 9.9 1.5 38.9 - 549
Race of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 11.9 ± 7.4 10.5 1.1 43.6 - 121
Asian 3 11.0 ± 0.9 10.7 10.3 12.0 - 3
Black 1 17.4 - 17.4 17.4 17.4 - 1
Hispanic 2 11.1 ± 6.7 11.1 6.3 15.8 - 2
Native American 2 11.0 ± 8.6 11.0 4.9 17.1 - 2
White 113 11.9 ± 7.6 10.3 1.1 43.6 - 113
Race of the participant vs Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 6.1 ± 2.8 6.1 4.1 8.1 - 2
Asian - - - - - - - -
Black - - - - - - - -
Hispanic - - - - - - - -
Native American - - - - - - - -
White 2 6.1 ± 2.8 6.1 4.1 8.1 - 2