TABLE 2.

Participant characteristics for myocardial infarction cases and controls

	mean (SD) or percent
	cases N = 487	controls N = 1,873
Matching Variables
Age, years	64(10)	64(10)
Female sex	63%	61%
Treated hypertension	64%	70%
Socioeconomic characteristics
White race	92%	90%
Retired	46%	46%
Employed	40%	42%
Low income(<$20,000)	22%	15%
College education	58%	64%
Marital status	64%	68%
Health-related behaviors
Amount LTPA if any (hours/wk)	6.0(5.7)	7.2(6.5)
Any LTPA	84%	88%
Any aspirin use	49%	59%
Any alcohol consumption	61%	72%
Current smoker	22%	11%
Health indicators
Self-reported health good or better	75%	86%
Diabetes mellitus	18%	10%
Obesity (BMI≥30)	43%	39%
Adult height (m)	1.7 (0.1)	1.7 (0.1)
HDL cholesterol	49 (16)	54 (17)
Heart rate (bpm)	77 (12)	75 (12)
Total cholesterol	237 (46)	223 (40)

Notes: LTPA indicates leisure-time physical activity; BMI, body mass index; bpm, beats per minute; HDL, high-density lipoprotein; SD, standard deviation