Figure 1:

Distribution of hospitals by ratio of PCI:CABG procedures performed within 90 days after index cardiac catheterization at that hospital. For analysis, hospitals were classified into four categories of ratios such that there were similar numbers of hospitals (four or five) in each category. The red line represents the mean PCI:CABG ratio (2.7). CABG = coronary artery bypass graft, PCI = percutaneous coronary intervention. The names of the hospitals appear in Box 1.