MESA Exam Number vs Normalized HF, ratio HF/(HF+LF)

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Exam 5	1,969	0.6	± 0.2	0.6	0.1	1.0	268	2,237

Participant Age at MESA Sleep Visit vs Normalized HF, ratio HF/(HF+LF)

Exam 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	1,969	0.6	± 0.2	0.6	0.1	1.0	268	2,237
54.0 to 62.0 years	506	0.6	± 0.1	0.6	0.2	0.9	54	560
62.0 to 69.0 years	522	0.6	± 0.2	0.6	0.1	1.0	37	559
69.0 to 77.0 years	489	0.6	± 0.1	0.6	0.1	1.0	70	559
77.0 to 95.0 years	452	0.5	± 0.1	0.5	0.1	0.9	107	559

Gender vs Normalized HF, ratio HF/(HF+LF)

Exam 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	1,969	0.6	± 0.2	0.6	0.1	1.0	268	2,237
Female	1,062	0.6	± 0.1	0.6	0.1	1.0	136	1,198
Male	907	0.6	± 0.2	0.6	0.1	1.0	132	1,039

Race/ethnicity vs Normalized HF, ratio HF/(HF+LF)

Exam 5

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Total	1,969	0.6	± 0.2	0.6	0.1	1.0	268	2,237
White, Caucasian	711	0.6	± 0.1	0.6	0.2	0.9	119	830
Chinese American	236	0.6	± 0.1	0.6	0.2	1.0	29	265
Black, African-American	551	0.5	± 0.1	0.5	0.1	1.0	65	616
Hispanic	471	0.6	± 0.1	0.6	0.1	0.9	55	526

Multi-Ethnic Study of Atherosclerosis