Table 2.

Characteristics of patients with acute myocardial infarction (AMI) according to length of hospital stay (Worcester Heart Attack Study).

	1995/1997 (n=1,323)		1999/2001 (n=1,409)		2003/2005 (n=1,448)
	Length of stay		Length of stay		Length of stay
Characteristic	<Median	≥Median	<Median	≥Median	<Median	≥Median
Age (yrs)
<65	37.2	27.1	38.6	22.4	44.4	21.7
65–74	27.1	26.9	19.1	23.0	17.4	19.5
75–84	25.0	31.0	23.3	34.1	19.8	33.1
≥85	10.7	15.1	19.1	20.6	18.4	25.7
Men (%)	62.3	51.2	58.6	51.2	62.3	47.2
Medical History (%)
Angina pectoris	24.6	26.9	19.7	24.0	19.8	19.1
Stroke	10.5	10.5	10.2	14.1	9.0	14.0
Hypertension	55.3	65.8	65.2	69.1	69.4	79.4
Diabetes mellitus	29.6	32.1	29.2	32.0	27.5	40.3
Heart Failure	15.9	20.9	20.8	32.2	21.6	32.5
AMI associated characteristics (%)
Initial	66.3	63.2	65.3	60.6	64.7	62.2
Q-wave	29.4	32.4	24.1	22.1	18.1	19.0
Anterior	24.7	27.5	15.8	14.4	11.0	12.9
STEMI	24.5	19.4	40.3	37.2	30.6	28.8
Clinical complications (%)
Heart failure	22.0	42.5	26.9	46.2	23.5	49.8
Cardiogenic shock	0.3	3.6	0.3	3.9	1.2	3.5
Recurrent angina	17.1	34.6	16.3	28.7	14.2	23.8
Atrial fibrillation	6.4	12.8	10.0	20.2	14.2	25.5
Stroke	0.2	1.8	0.6	2.3	0.7	2.2
Do not resuscitate order	10.9	16.5	21.2	26.2	17.4	28.7
Therapies(%)
Aspirin	94.7	93.5	92.8	90.9	95.1	94.6
ACE inhibitors	37.8	47.8	55.4	60.9	68.6	71.0
B-blockers	81.4	81.5	87.7	84.4	95.3	94.2
Calcium antagonists	29.6	31.8	24.1	30.6	19.1	28.5
Lipid lowering agents	18.9	14.2	55.8	48.4	76.7	71.5
Thrombolitics	20.4	21.1	12.5	10.7	0.5	1.4
Procedures during hospitalization(%)
Cardiac catheterization	26.5	38.2	43.8	44.4	68.4	55.5
PTCA	12.5	16.5	31.6	27.1	56.7	45.2