Click on image to view larger version.

Figure 3 10-Year Survival Rates for Patients According to Subgroups Based on Characteristics at Study Entry

Ninety-nine percent confidence intervals of the absolute treatment difference between 10-year survival rates are shown for each subgroup. The test of the interaction between treatment effect and subgroup is based on proportional hazards models. CABG = coronary artery bypass grafting; CCS = Canadian Cardiovascular Society classification of angina; CHF = congestive heart failure; ECG = electrocardiogram; LAD = left anterior descending coronary artery; LV = left ventricular; MI = myocardial infarction; PTCA = percutaneous transluminal coronary balloon angioplasty; PVD = peripheral vascular disease.