nap2_rem nap2_sleep
Name
nap2_sl
Label
MSLT: Nap 2 Sleep Latency
Description

Sleep latency was scored by two scorers. It is the average of the two scores.

Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).

Search for all Multiple Sleep Latency Test variables within this dataset

Units
minutes
Type
numeric
Tags
mslt
Study visit number vs MSLT: Nap 2 Sleep Latency
N Mean StdDev Median Min Max Unknown Total
Visit 1 797 10.4 ± 6.0 9.0 1.0 20.0 - 797
Visit 2 592 12.0 ± 5.7 11.5 1.0 20.0 - 592
Visit 3 157 12.7 ± 5.6 12.5 2.5 20.0 - 157
Visit 4 - - - - - - - -
Visit 5 - - - - - - - -
Incident Outcomes Tracking - - - - - - - -
Sex of the participant vs MSLT: Nap 2 Sleep Latency
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 797 10.4 ± 6.0 9.0 1.0 20.0 - 797
Male 423 9.7 ± 5.8 7.5 1.0 20.0 - 423
Female 374 11.3 ± 6.1 10.4 1.5 20.0 - 374
Sex of the participant vs MSLT: Nap 2 Sleep Latency
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 592 12.0 ± 5.7 11.5 1.0 20.0 - 592
Male 312 11.2 ± 5.5 10.0 2.0 20.0 - 312
Female 280 12.9 ± 5.7 12.9 1.0 20.0 - 280
Sex of the participant vs MSLT: Nap 2 Sleep Latency
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 157 12.7 ± 5.6 12.5 2.5 20.0 - 157
Male 86 11.6 ± 5.3 11.0 2.5 20.0 - 86
Female 71 14.0 ± 5.6 14.5 2.5 20.0 - 71
Race of the participant vs MSLT: Nap 2 Sleep Latency
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 797 10.4 ± 6.0 9.0 1.0 20.0 - 797
Asian 5 10.9 ± 7.2 8.0 3.0 20.0 - 5
Black 10 6.9 ± 5.4 4.3 2.0 16.5 - 10
Hispanic 5 11.6 ± 8.5 12.0 2.5 20.0 - 5
Native American 6 11.5 ± 7.8 12.3 3.0 20.0 - 6
White 771 10.5 ± 5.9 9.0 1.0 20.0 - 771
Race of the participant vs MSLT: Nap 2 Sleep Latency
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 592 12.0 ± 5.7 11.5 1.0 20.0 - 592
Asian 4 11.1 ± 3.7 9.6 8.5 16.5 - 4
Black 6 5.6 ± 3.0 5.5 1.0 10.0 - 6
Hispanic 5 10.3 ± 6.0 10.8 3.3 19.0 - 5
Native American 4 11.3 ± 3.6 11.4 7.0 15.5 - 4
White 573 12.1 ± 5.7 11.5 1.8 20.0 - 573
Race of the participant vs MSLT: Nap 2 Sleep Latency
Visit 3
N Mean StdDev Median Min Max Unknown Total
Total 157 12.7 ± 5.6 12.5 2.5 20.0 - 157
Asian 3 14.2 ± 5.1 11.5 11.0 20.0 - 3
Black 1 2.5 - 2.5 2.5 2.5 - 1
Hispanic 1 20.0 - 20.0 20.0 20.0 - 1
Native American 2 6.3 ± 1.1 6.3 5.5 7.0 - 2
White 150 12.7 ± 5.5 12.5 2.5 20.0 - 150