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Table 2 Variables used in the propensity score model: balance before and after inverse probability of treatment weighting

From: Impact of the perioperative inotropic support in grown-up congenital heart patients undergoing cardiac surgery: a propensity score adjusted analysis

Variable Before IPTW weighting After IPTW weighting
Levosimendan (n = 87) Milrinone (n = 117) Standardized difference P value* Standardized difference P value**
Euroscore II 3.81 2.12 0.35 0.02 0.17 0.86
NYHA category 2.59 2.30 0.37 0.009 0.22 0.49
LV ejection fraction 0.61 0.64 − 0.28 0.05 − 0.08 0.59
LV dilatation 0.09 0.12 − 0.09 0.52 − 0.07 0.63
RV function altered 0.39 0.21 0.33 0.02 0.08 0.61
RV hypertroph 0.03 0.10 − 0.27 0.05 − 0.02 0.90
RV dilatation 0.57 0.56 0.02 0.90 0.13 0.47
CPB duration 183.23 114.60 0.97 < 0.001 − 0.05 0.82
  1. CPB cardiopulmonary bypass, IPTW inverse probability of treatment weighting, LV left ventricle, NYHA New York Heart Association, RV right ventricle
  2. *Estimated using a t test or a Mann–Whitney test, as appropriate
  3. **Estimated using a weighted regression model