Fig. 2.

Head-to-head comparison of the absolute standardized differences obtained within the two matched sub-cohorts. ACEI angiotensin converting enzyme inhibitors; ARB angiotensin receptor blockers; BB beta-blockers; CABG coronary artery bypass graft; Calc blockers calcium blockers; CHF congestive heart failure; hdPS high-dimensional propensity score; PCI percutaneous coronary intervention; PVD peripheral vascular disease; Absolute standardized differences <0.1 are assumed to indicate balance; all 18 patient characteristics were considered to be balanced within the two sub-cohorts