Visit vs Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Visit 5	732	68.9	± 33.2	69.0	0.0	208.0	3	735

Participant's age (category) vs Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography

Visit 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	655	68.1	± 33.0	68.0	0.0	208.0	3	658
5-14 yrs old	64	59.6	± 23.5	61.0	0.0	119.0	-	64
15-24 yrs old	112	68.9	± 31.5	73.0	0.0	145.0	-	112
25-34 yrs old	62	79.2	± 32.2	74.5	7.0	160.0	-	62
35-44 years	97	78.4	± 36.0	79.0	0.0	208.0	1	98
45-54 years	146	70.8	± 31.2	70.0	0.0	151.0	2	148
55-64 years	84	67.5	± 35.4	66.0	0.0	145.0	-	84
65-74 years	57	55.7	± 28.9	59.0	0.0	130.0	-	57
75-84 years	31	43.4	± 31.6	44.0	0.0	105.0	-	31
85 years or older	2	14.0	± 4.2	14.0	11.0	17.0	-	2

Participant's sex vs Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography

Visit 5

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	732	68.9	± 33.2	69.0	208.0	3	735
Female	403	70.5	± 33.9	70.0	199.0	3	406
Male	329	66.9	± 32.2	67.0	208.0	-	329

Participant's race vs Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography

Visit 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	732	68.9	± 33.2	69.0	0.0	208.0	3	735
White	302	66.0	± 30.9	67.0	0.0	140.0	2	304
Black	408	70.7	± 34.7	70.5	0.0	208.0	1	409
More than one race	22	75.6	± 31.2	69.0	36.0	156.0	-	22

Cleveland Family Study

Age