Name
naps
Label
Self-reported total sleep duration in naps per week
Description

How many hours of sleep do you usually get during: a typical week from daytime or evening naps?

Units
hours
Type
numeric
Study visit number vs Self-reported total sleep duration in naps per week
N Mean StdDev Median Min Max Unknown Total
Visit 1 1,119 1.5 ± 2.3 1.0 0.0 17.5 4 1,123
Visit 2 758 1.6 ± 2.3 1.0 0.0 21.0 - 758
Visit 3 566 1.5 ± 2.3 0.5 0.0 15.0 - 566
Visit 4 121 1.3 ± 2.2 0.3 0.0 14.0 - 121
Visit 5 2 3.8 ± 4.6 3.8 0.5 7.0 - 2
Incident Outcomes Tracking - - - - - - - -
Sex of the participant vs Self-reported total sleep duration in naps per week
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,119 1.5 ± 2.3 1.0 0.0 17.5 4 1,123
Male 606 1.6 ± 2.3 1.0 0.0 14.0 2 608
Female 513 1.4 ± 2.4 0.3 0.0 17.5 2 515
Sex of the participant vs Self-reported total sleep duration in naps per week
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 758 1.6 ± 2.3 1.0 0.0 21.0 - 758
Male 406 1.8 ± 2.5 1.0 0.0 21.0 - 406
Female 352 1.3 ± 2.0 0.5 0.0 14.0 - 352
Sex of the participant vs Self-reported total sleep duration in naps per week
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 1.5 ± 2.3 0.5 0.0 15.0 - 566
Male 304 1.6 ± 2.5 1.0 0.0 14.0 - 304
Female 262 1.3 ± 2.1 0.5 0.0 15.0 - 262
Sex of the participant vs Self-reported total sleep duration in naps per week
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 1.3 ± 2.2 0.3 0.0 14.0 - 121
Male 67 1.4 ± 2.3 0.8 0.0 14.0 - 67
Female 54 1.2 ± 2.1 0.2 0.0 10.0 - 54
Sex of the participant vs Self-reported total sleep duration in naps per week
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 3.8 ± 4.6 3.8 0.5 7.0 - 2
Male - - - - - - - -
Female 2 3.8 ± 4.6 3.8 0.5 7.0 - 2
Race of the participant vs Self-reported total sleep duration in naps per week
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 1,119 1.5 ± 2.3 1.0 0.0 17.5 4 1,123
Asian 12 1.1 ± 2.6 0.3 0.0 9.0 - 12
Black 23 1.6 ± 2.8 0.0 0.0 10.0 - 23
Hispanic 13 1.9 ± 2.7 0.0 0.0 8.0 - 13
Native American 10 0.9 ± 0.8 1.0 0.0 2.0 - 10
White 1,061 1.5 ± 2.3 1.0 0.0 17.5 4 1,065
Race of the participant vs Self-reported total sleep duration in naps per week
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 758 1.6 ± 2.3 1.0 0.0 21.0 - 758
Asian 4 0.5 ± 1.0 0.0 0.0 2.0 - 4
Black 8 4.7 ± 3.5 3.8 1.0 12.0 - 8
Hispanic 6 0.7 ± 0.8 0.5 0.0 2.0 - 6
Native American 6 0.9 ± 0.8 1.0 0.0 2.0 - 6
White 734 1.6 ± 2.3 1.0 0.0 21.0 - 734
Race of the participant vs Self-reported total sleep duration in naps per week
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 566 1.5 ± 2.3 0.5 0.0 15.0 - 566
Asian 4 0.5 ± 1.0 0.0 0.0 2.0 - 4
Black 4 2.5 ± 2.6 2.0 0.0 6.0 - 4
Hispanic 5 4.8 ± 4.6 4.0 0.0 12.0 - 5
Native American 4 0.9 ± 0.9 0.8 0.0 2.0 - 4
White 549 1.4 ± 2.3 0.5 0.0 15.0 - 549
Race of the participant vs Self-reported total sleep duration in naps per week
Visit 4
N Mean StdDev Median Min Max Unknown Total
Total 121 1.3 ± 2.2 0.3 0.0 14.0 - 121
Asian 3 2.5 ± 3.1 1.5 0.0 6.0 - 3
Black 1 2.0 - 2.0 2.0 2.0 - 1
Hispanic 2 0.0 ± 0.0 0.0 0.0 0.0 - 2
Native American 2 0.5 ± 0.7 0.5 0.0 1.0 - 2
White 113 1.3 ± 2.2 0.3 0.0 14.0 - 113
Race of the participant vs Self-reported total sleep duration in naps per week
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 2 3.8 ± 4.6 3.8 0.5 7.0 - 2
Asian - - - - - - - -
Black - - - - - - - -
Hispanic - - - - - - - -
Native American - - - - - - - -
White 2 3.8 ± 4.6 3.8 0.5 7.0 - 2