Figure 3.

The 12 most important predictors of all-cause mortality as assessed by the SEMMELWEIS-CRT score. The importance of each feature was quantified by calculating the decrease in the model’s performance (area under the receiver operating characteristic curve) after permuting its values (permutation feature importances method). The higher its value, the more important the feature is. As the values of feature importances were spread over a wide range (more orders of magnitude), base-10 logarithmic transformation was performed to facilitate plotting. CRT, cardiac resynchronization therapy; LVEF, left ventricular ejection fraction; NYHA, New York Heart Failure Association functional class.