Table 1.

Comparison of Patient Characteristics Between Survey Samples (Weighted for the stratified sampling design to estimate population wide characteristics in each year)

	1985 (N = 1,306)	1990 (N = 1,550)	1995 (N = 1,087)	2001 (N = 515)	P for trend
Demographics
Age (mean ± SD, years)	60.4±13.4	60.9±12.2	59.7±14.4	60.2±12.6	NS
Male*	72.4%	71.4	70.6	66.6	0.02
Caucasian	94.0%	92.4	84.3	87.3	<0.0001
Past Medical History
Diabetes	N/A	N/A	24.5%	28.1%	NS
Hypertension	52.1%	51.7%	55.2%	58.5%	0.007
Myocardial Infarction	31.0%	31.3%	26.7%	24.0%	0.0008
Angina pectoris	32.5%	32.4%	29.2%	22.8%	<0.0001
Cardiac arrest	1.8%	2.2%	1.7%	1.6%	NS
Stroke	5.6%	7.6%	7.9%	8.7%	0.03
Coronary Angioplasty	N/A	6.4%	11.4%	17.6%	<0.0001
Coronary Bypass	7.4%	10.6%	9.9%	12.8%	0.002
Procedures
Coronary angiography	19.7%	48.7%	65.5%	77.3%	<0.0001
Any Coronary	3.8%	19.7%	34.9%	50.5%	<0.0001
Angioplasty
Primary Coronary	NA	NA	32.0%	76.9%	<0.0001
Angioplasty*
Coronary Angioplasty 24h*	34.7%	37.7%	46.0%	73.5%	<0.0001
Stent*	NA	NA	12.9%	94.1%	<0.0001
Coronary Bypass	6.4%	12.9%	15.0%	9.1%	0.06
In-Hospital Medication
Aspirin	N/A	79.1%	92.6%	94.6%	<0.0001
Beta blockers	55.1%	50.0%	71.2%	88.2%	<0.0001
Calcium blockers	49.7%	60.3%	34.7%	25.3%	<0.0001
High dose heparin	25.9%	56.1%	80.2%	81.7%	<0.0001
Angiotensin-Converting	N/A	20.3%	39.2%	62.6%	<0.0001
Enzyme inhibitors
Thrombolytic therapy	12.4%	28.4%	28.8%	7.4%	0.03
Warfarin	20.1%	14.4%	18.8%	11.4%	0.0006
Complications
Heart Failure	29.5%	27.6%	27.1%	20.9%	0.0004

^*The percentages displayed for primary PTCA, PTCA within 24 hours, and stenting were based on the subgroup of patients who underwent any percutaneous coronary intervention.