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)