Skip to main content

Table 2 Covariate balance testing between unmatched and matched sample

From: Emergency coronary artery bypass grafting using minimized versus standard extracorporeal circulation – a propensity score analysis

Variable Standardized difference [%] % reduction |difference| p-value
  Unmatched Matched   Unmatched Matched
Ejection fraction 44.6 0.3 99.4 0.02 0.98
Serum creatinine −18.3 8.3 54.6 0.14 0.28
No of grafts −26.5 22.1 16.6 0.03 0.11
LIMA use 31.1 2.6 91.5 0.01 0.85
Bypass time −66.3 3.7 94.5 < 0.0001 0.78
Cross clamp time −34.1 8.9 73.9 0.005 0.52