How Age, Sex and Transfusion Affects the Incidence of Endo-crine and Bone Density Disorders in Major Thalassemic Patients

Abstract

Background: Beta-thalassemia major patients frequently have endocrinopathies. We tried to determine relation between demographic and transfusion factor and endocrinopathies.

Methods: Major beta-thalassemia patients (n=114 cases), 3–38 yr of age, entered this study. Female to male ratio was 51/63. Children (less than 20 yr) formed 57% of participants. Information about bone mineral density (BMD) and hormonal and biochemistry blood evaluation including fasting blood sugar (FBS), ferritin, triiodothyronine (T3), thyroxine (T4) and thyroid-stimulating hormone (TSH), luteinizing hormone (LH) and follicle-stimulating hormone (FSH), testosterone (males), and estradiol (females) entered data sheet.

Results: Sex and ferritin level showed no significant correlation with above disorders. Age significantly correlated to short stature, diabetes, low BMD at femur and neck (P, 0.031, 0.008, 0.009 and <0.001, respectively). The risk of short stature had increased in 12 yr and older patients 7.71 times than younger patients (P= 0.008). The risk of diabetes had increased in 35 yr and older patients 26.25 times than younger patients (P= 0.03).  The risk of Z-score ≤ -2 in femoral region has increased in 19 yr and older patients 5.84 times than younger patients (P= 0.002). The risk of Z-score ≤ -2 in spinal region has increased in 14 yr and older patients 17 times than younger patients (P= 0.007).

Conclusion: The main factor related with endocrinopathies was age. The correlation between age and short stature, diabetes and low BMD was positive. Therefore, we recommend early monitoring of thalassemia patients (in their late childhood and early teenage) for these complications.