Table 2

Survival analysis

	p Value^2-150	Risk ratio
Demographics
Age ⩾ 71 years	< 0.01	2.15
Sex (M/F)	0.01	1.90
Cardiovascular status
LVEF ⩽40%	< 0.01	3.49
Previous MI	< 0.01	2.43
Three vessel disease	< 0.01	2.34
PTCA	0.05	0.46
Risk factors
IDDM	0.01	1.85
Drug treatment
β Blockers	< 0.01	0.58
ACE inhibitors	< 0.01	1.32

↵2-150 Wald χ² test.
ACE, angiotensin converting enzyme; IDDM, insulin dependent diabetes mellitus; LVEF, left ventricular ejection fraction; PTCA, percutaneous transluminal coronary angioplasty.