Visit vs Frequency of falling asleep on the job

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Visit 5	202	2.6	± 1.1	2.0	1.0	5.0	533	735

Participant's age (category) vs Frequency of falling asleep on the job

Visit 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	180	2.6	± 1.1	2.0	1.0	5.0	478	658
5-14 yrs old	1	1.0	-	1.0	1.0	1.0	63	64
15-24 yrs old	21	1.7	± 0.6	2.0	1.0	3.0	91	112
25-34 yrs old	24	2.7	± 1.2	2.0	1.0	5.0	38	62
35-44 years	34	2.7	± 1.2	2.0	1.0	5.0	64	98
45-54 years	61	2.8	± 1.0	3.0	1.0	5.0	87	148
55-64 years	29	2.6	± 1.2	2.0	1.0	5.0	55	84
65-74 years	6	2.7	± 0.8	2.5	2.0	4.0	51	57
75-84 years	4	3.3	± 1.5	3.0	2.0	5.0	27	31
85 years or older	-	-	-	-	-	-	2	2

Participant's sex vs Frequency of falling asleep on the job

Visit 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	202	2.6	± 1.1	2.0	1.0	5.0	533	735
Female	114	2.4	± 1.1	2.0	1.0	5.0	292	406
Male	88	2.8	± 1.1	2.5	1.0	5.0	241	329

Participant's race vs Frequency of falling asleep on the job

Visit 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	202	2.6	± 1.1	2.0	1.0	5.0	533	735
White	70	2.5	± 1.1	2.0	1.0	5.0	234	304
Black	127	2.6	± 1.1	2.0	1.0	5.0	282	409
More than one race	5	2.2	± 1.3	2.0	1.0	4.0	17	22

Cleveland Family Study

Race