2.

Demographic Characteristics and Catheterization Results for All Patients Reporting Symptoms (N=1196) and for Blacks (n=116) and Whites (n=1080): Pittsburgh, Pa, November 1997 to June 1999

	Total Sample	Blacks	Whites	P
Baseline characteristics
Age, y, mean (SD)	62.0 (11.07)	58.7 (11.99)	62.4 (10.91)	.001
Male gender, %	77.1	65.8	78.8	.002
Education completed, %				.146
Less than high school	19.7	14.8	20.5
Higher than high school	79.3	85.2	79.5
Marital status, %				<.001
Single	8.0	19.8	6.7
Married	64.2	39.7	66.9
Divorced	14.8	26.7	13.5
Widowed	13.0	13.8	12.9
Currently working, %	28.6	30.2	28.4	.878
Income satisfaction, %				.044
Not enough	14.8	18.5	14.4
Just enough	41.4	50	40.5
Only comfortable	26.5	16.7	27.6
Meets desires	17.3	14.8	17.5
Previous revascularization, %	37.0	24.1	38.5	.002
Health care system, %				.158
VA	45.9	39.7	46.5
Non-VA	54.1	60.3	53.5
General health, %				.028
Poor	14.6	14.7	14.6
Fair	35.5	48.3	34.1
Good	40.3	31.9	41.3
Very good	6.9	3.4	7.2
Excellent	2.7	1.7	2.8
Catheterization result
LV ejection fraction, %, mean (SD)	60.59 (19.99)	62.7 (23.7)	60.4 (19.6)	.438
Severity of disease, %				<.001
No disease	30.0	46.5	28.2
Mild (1–2 vessels without PLADa)	25.7	26.7	25.6
Moderate (1–2 vessels with PLADa)	8.7	7.8	8.8
Severe (3 vesselsa or left mainb)	35.6	19.0	37.4
Any significant stenosis, %	70.0	53.4	71.8	<.001

Note. VA = Veterans Affairs; LV = left ventricular; PLAD = proximal left anterior descending artery.

^aStenosis ≥ 70%.

^bStenosis > 50%.