Table 2 Covariate balance testing between unmatched and matched sample
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 |