"Thirty-Year Trends in Outcomes of Percutaneous Coronary Interventions in Diabetic Patients"
Mayo Clin Proc Jan 2013
http://www.mayoclinicproceedings.org/article/S0025-6196(12)01035-X/fulltext
"Conclusion
Over 30 years, the improving outcomes in patients with diabetes who underwent PCIs have been similar to improvements in patients without DM. However, the risk-adjusted association of DM with long-term death, myocardial infarction, and stroke has decreased in the current era (group 4) compared with the bailout stent era (group 2)."