Thalassemia and Hemoglobin E in Southern Thai Blood Donors

Table 2

Prevalence of thalassemia and Hb E among Southern Thai blood donors.

Diagnosis	Number of donors (%)
Normal and heterozygous 𝛼-thalassemia 2	101 (87.1)
Homozygous 𝛼-thalassemia 2	2 (1.7)
Heterozygous 𝛼-thalassemia 1	2 (1.7)
Heterozygous 𝛽-thalassemia without 𝛼-thalassemia	1 (0.9)
Heterozygous Hb E without 𝛼-thalassemia	6 (5.2)
Double heterozygotes for Hb E/𝛼-thalassemia 1	2 (1.7)
Homozygous Hb E without 𝛼-thalassemia	1 (0.9)
Homozygous Hb E with heterozygous 𝛼-thalassemia 2	1 (0.9)
Total	116 (100)