MESA exam number vs Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography

	N	Mean	StdDev	Median	Min	Max	Unknown	Total
Exam 5	2,057	4.1	± 10.2	0.0	0.0	82.8	180	2,237

Participant Age at MESA Sleep Visit vs Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography

Exam 5

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	2,057	4.1	± 10.2	0.0	82.8	180	2,237
54.0 to 62.0 years	525	3.0	± 8.3	0.0	78.6	35	560
62.0 to 69.0 years	532	4.4	± 11.4	0.0	80.0	27	559
69.0 to 77.0 years	510	4.0	± 9.5	0.2	82.8	49	559
77.0 to 95.0 years	490	5.2	± 11.2	0.4	72.7	69	559

Gender of the participant vs Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography

Exam 5

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	2,057	4.1	± 10.2	0.0	82.8	180	2,237
Female	1,103	1.9	± 6.2	0.0	72.7	95	1,198
Male	954	6.7	± 12.9	0.7	82.8	85	1,039

Race/ethnicity of the participant vs Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography

Exam 5

	N	Mean	StdDev	Median	Max	Unknown	Total
Total	2,057	4.1	± 10.2	0.0	82.8	180	2,237
White, Caucasian	743	4.1	± 10.1	0.0	82.8	87	830
Chinese American	250	4.7	± 9.6	0.6	62.7	15	265
Black, African-American	573	3.9	± 10.8	0.0	80.0	43	616
Hispanic	491	4.2	± 9.9	0.2	65.5	35	526

Multi-Ethnic Study of Atherosclerosis

Gender