Table 1.

Baseline characteristics of cohort studies, including the MESA, the MrOS study, and the SHHS.

	SHHS (n = 5,473)	MESA (n = 1,904)	MrOS (n = 2,685)
Age, years	63.0 (11.2)	68.3 (9.1)	76.4 (5.6)
Female sex, n (%)	2871 (52.5%)	1019 (53.5%)	0 (0.0%)
BMI, kg/m2	28.2 (5.1)	28.7 (5.5)	27.1 (3.8)
Race, n (%)
White	4647 (84.9%)	694 (36.4%)	2430 (90.5%)
Chinese	0 (0.0%)	230 (12.1%)	0 (0.0%)
Black	458 (8.4%)	527 (27.7%)	0 (0.0%)
Hispanic	0 (0.0%)	453 (23.8%)	53 (2.0%)
Other	368 (6.7%)	0 (0.0%)	29 (1.1%)
African American	0 (0.0%)	0 (0.0%)	90 (3.4%)
Asian	0 (0.0%)	0 (0.0%)	83 (3.1%)
Hypertension, n (%)	2760 (50.4%)	1013 (59.2%)	1518 (56.5%)
Diabetes, n (%)	385 (5.2%)	267 (15.6%)	294 (10.9%)
Sleepiness (ESS > 10), n (%)	1316 (25.0%)	253 (13.4%)	349 (13.0%)
Follow-Up Data	SHHS (n = 3,944)	MESA (n = 1,783)	MrOS (n = 1,557)
Incident CVD, n (%)	779 (19.8%)	96 (5.4%)	388 (24.9%)

In MESA, incident CVD included myocardial infarction (MI), resuscitated cardiac arrest, definite angina, probable angina (if followed by revascularization), stroke, stroke death, coronary heart disease-related death (CHD), other atherosclerotic death not defined in stroke and CHD-related death, and other CVD-related death not defined in other categories. In MrOS, incident CVD include any type of fatal or nonfatal cardiovascular events, including coronary heart disease, cerebrovascular disease events, peripheral vascular disease, cardiovascular disease events, and any heart failure. In SHHS, incident CVD included fatal and nonfatal MI, MI-related procedures, fatal and nonfatal stroke, congestive heart failure, CHD-related death, and other CVD-related deaths not defined in other events. BMI = body mass index, CVD = cardiovascular disease, ESS = Epworth Sleepiness Scale, MESA = Multi-Ethnic Study of Atherosclerosis, MrOS = Osteoporotic Fractures in Men, SHHS = Sleep Heart Health Study.