Fig. 1.

Fig. 2.

Characteristics of the two subgroups in terms of age, BMI, NYHA class and ejection fraction
| BMI | CLASS NYHA | Fraction ejection | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The average age | Correct | Overweight | Obesity | I | II | III | IV | Unclassified | >50% | 36–50% | <35% | |
| Low efficiency n = 18 | 67.3 | 2 | 7 | 9 | 2 | 7 | 4 | 0 | 5 | 0 | 0 | 18 |
| High efficiency n = 37 | 55.7 | 9 | 18 | 10 | 12 | 22 | 1 | 0 | 2 | 0 | 0 | 37 |