From "Institutional Volumes and Coronary Angioplasty Outcomes before and after the Introduction of Stenting" Effective Clinical Practice, May/June 1999. 2:108-113.
Figure 5. Hospital mortality and same-admission coronary artery bypass grafting (CABG) among all patients who underwent percutaneous transluminal coronary angioplasty (PTCA) (n = 43,040), by total procedure volume categories. P values are adjusted for age, sex, ethnicity, diabetes mellitus, and multivessel PTCA. AMI = acute myocardial infarction.>