Correlation between some measured and calculated variables and the degree of overestimation of ejection fraction (EF) by Teichholz’s formula (n = 16)
| Linear correlation to overestimation of EF | Level of significance | |
|---|---|---|
| Wall thickness | r = 0.62 | p = 0.011 |
| LV end systolic diameter | r = −0.47 | NS |
| Hypertension or cardiomyopathy | r = 0.44 | NS |
| Age | r = −0.31 | NS |
| LV end diastolic diameter | r = −0.16 | NS |
| EF by radionuclide angiography | r= 0.13 | NS |
| Sex | r = 0.05 | NS |