The effect of idiopathic premature ventricular complexes on left ventricular ejection fraction

Figure 1. The frequency distribution of PVC burden (%). PVC, premature ventricular complex

Figure 2. Partial effect plot of PVC burden (%). Red line represents the beginning of LVEF decline. Interacting with LVEF began when PVC burden was >5%. LVEF, left ventricular ejection fraction; PVC, premature ventricular complex

Figure 3. Three‐dimensional perspective plot for PVC burden (%) and age interaction. PVC, premature ventricular complex

Figure 4. Importance of individual predictors. The importance of each predictor in the full model was calculated as the proportion of explainable outcome variation contributed by each predictor (partial chi‐square value for each predictor divided by the model's total chi‐square)

Figure 5. Nomogram for estimating the probability of LVEF ≤ 40%, LVEF ≤ 50%. AA, antiarrhythmic drug; LVEF, left ventricular ejection fraction