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Files

Variables

Name

nap5_sl

Label

MSLT: Nap 5 Sleep Latency

Description

Sleep latency was scored by two scorers. It is the average of the two scores. Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps.

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

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Visit 1	99	14.8	± 5.6	16.8	2.5	20.0	698	797
Visit 2	392	14.7	± 5.7	16.0	1.5	20.0	200	592
Visit 3	90	17.0	± 4.3	19.9	3.5	20.0	67	157
Visit 4	-	-	-	-	-	-	-	-
Visit 5	-	-	-	-	-	-	-	-
Incident Outcomes Tracking	-	-	-	-	-	-	-	-

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	99	14.8	± 5.6	16.8	2.5	20.0	698	797
Male	60	14.1	± 6.1	16.5	2.5	20.0	363	423
Female	39	15.8	± 4.7	17.5	3.5	20.0	335	374

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	392	14.7	± 5.7	16.0	1.5	20.0	200	592
Male	211	14.5	± 5.8	15.8	1.5	20.0	101	312
Female	181	15.0	± 5.5	17.5	2.0	20.0	99	280

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	90	17.0	± 4.3	19.9	3.5	20.0	67	157
Male	57	16.6	± 4.7	20.0	3.5	20.0	29	86
Female	33	17.7	± 3.6	19.8	6.0	20.0	38	71

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	99	14.8	± 5.6	16.8	2.5	20.0	698	797
Asian	-	-	-	-	-	-	5	5
Black	1	13.0	-	13.0	13.0	13.0	9	10
Hispanic	-	-	-	-	-	-	5	5
Native American	1	3.5	-	3.5	3.5	3.5	5	6
White	97	14.9	± 5.6	17.0	2.5	20.0	674	771

Wisconsin Sleep Cohort