Table 1 Primary hematologic diagnoses... | American Society of Hematology

Table 1

Primary hematologic diagnoses transfusion burden of study population

Diagnosis	N (% of total)	Mean transfusion burden, mg iron/kg per d (mean ± SD)
β-thalassemia major	38 (75)	0.389 ± 0.106
α-thalassemia major	2 (4)	0.278 ± 0.055*
Non-thalassemia major disorders	11 (21)	0.283 ± 0.083†
β-thalassemia intermedia‡ (transfused > 7/year)	2 (4)	0.203 ± 0.024*
HbE-β⁰ thalassemia	6 (12)	0.304 ± 0.098
Sickle cell disease	3 (6)	0.293 ± 0.077

Diagnosis	N (% of total)	Mean transfusion burden, mg iron/kg per d (mean ± SD)
β-thalassemia major	38 (75)	0.389 ± 0.106
α-thalassemia major	2 (4)	0.278 ± 0.055*
Non-thalassemia major disorders	11 (21)	0.283 ± 0.083†
β-thalassemia intermedia‡ (transfused > 7/year)	2 (4)	0.203 ± 0.024*
HbE-β⁰ thalassemia	6 (12)	0.304 ± 0.098
Sickle cell disease	3 (6)	0.293 ± 0.077

Plus or minus range for N = 2.

Significantly different from β-thalassemia major (P = .0036 by unpaired t test).

Receiving at least 7 transfusions annually before and during study period.