Figure 3:

Percutaneous coronary intervention rates on day of admission for acute myocardial infarction (AMI) and 30 days after AMI, by risk category. Risk groups were determined based on predicted 30-day mortality as low (< 10%) (A), medium (10%–20%) (B) or high (> 20%) (C). Numbers represent Kaplan–Meier estimates, censoring for death or entry into a managed care Medicare plan (US patients only).