COURAGE compared outcomes in stable coronary patients randomized to optimal medical therapy plus percutaneous coronary intervention (PCI) versus optimal medical therapy alone.
Angiographic data were analyzed by treatment arm, health care system (Veterans Administration, US non-Veterans Administration, Canada), and gender. Veterans Administration patients had higher prevalence of coronary artery bypass graft surgery and left ventricular ejection fraction
Comment In: Circ Cardiovasc Qual Outcomes. 2009 Jul;2(4):292-320031852