Seven-year outcome in the Bypass Angioplasty Revascularization Investigation (BARI) by treatment and diabetic status
The BARI Investigators*,a,b,c
a National Heart, Lung and Blood Institute, Bethesda, Maryland, USA
b Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
c the BARI Investigative Sites, USA
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Figure 1 Kaplan-Meier estimates of overall survival for all BARI randomized patients (Panel A), for randomized patients with treated diabetes (Panel B) and for randomized patients without treated diabetes (Panel C). Solid lines indicate patients assigned to CABG and dashed lines indicate patients assigned to PTCA. The numbers of patients at risk are shown below the graph at baseline, three years and seven years. CABG = coronary artery bypass grafting; PTCA = percutaneous transluminal coronary angioplasty.
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Figure 2 Seven-year estimated survival rates for all patients, for patients with treated diabetes and for patients without treated diabetes according to subgroups selected a priori on the basis of baseline characteristics. Ninety-nine percent confidence intervals (CI) of the difference between the seven-year survival rates for the CABG group and the PTCA group are shown in the first column, and 99.5% CI are shown in the second and third column. CABG = coronary artery bypass grafting; PTCA = percutaneous transluminal coronary angioplasty; CCS = Canadian Cardiovascular Society; LAD = left anterior descending artery; LV = left ventricle; QMI = Q wave myocardial infarction.
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Figure 3 Seven-year estimated survival rates for all patients, for patients with treated diabetes and for patients without treated diabetes according to additional subgroups selected on the basis of baseline characteristics. Ninety-nine-and-one-half percent confidence intervals (CI) of the difference between the seven-year survival rates for the CABG group and the PTCA group are shown. CABG = coronary artery bypass grafting.
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Figure 4 Angina status at baseline, 6 months, 1 year, 3 years, 5 years and 7 years after study entry among surviving patients randomized to PTCA and CABG. P values for the treatment difference between the percentage of patients with angina are presented on top of the bars for each follow-up. CABG = coronary artery bypass grafting; PTCA = percutaneous transluminal coronary angioplasty.
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