Survey on haemoglobin variants, beta thalassaemia, glucose-6-phosphate dehydrogenase deficiency, and haptoglobin types in Turks from western Thrace.

A total of 102 apparently healthy and randomly selected Turks who either immigrated from Western Thrace or were still living there were studied for haemoglobin variants, high Hb A2 beta thalassaemia, G6PD deficiency, and haptoglobin types. The incidence of haemoglobins S and O Arab were 2.9 and 3.9% respectively. The incidence of high A2 beta thalassaemia was 10.8% and that of G6PD deficiency 5%. The gene frequencies of Hp1 and Hp2 were 0.326 and 0.674, respectively.