Table 3. Correlation of Serum Ferritin Level With T2* MRI, liver Iron Concentration and Ejection Fraction in Patients With Thalassemia ^a.

Variables	Values	Boot strap P Value
T2* MRI Heart		0.002 b
Correlation coefficient	-0.329
Bootstrap 95% CI	-0.532 - 0.122
T2* MRI Liver
Correlation coefficient	-0.698	< 0.001 b
Bootstrap 95% CI	-0.804 - 0.545
LIC		< 0.001 b
Correlation coefficient	+ 0.718
Bootstrap 95% CI	0.58 - 0.817
EF		0.399
Correlation coefficient	+0.093
Bootstrap 95% CI	-0.116 - 0.294

^aAbbreviations: LIC, liver iron concentration; EF, ejection fraction.

^bStatistically significant.