The estimated numbers of pregnancies each year in the varied regions in which the fetus would be at risk for β-thalassemia major (TM) or intermedia (TI), Bart's hydrops fetalis, and Hb H disease were shown in Table 3, and 69% (105/152) of thalassemia major or intermedia located in Ganzhou region. This evidence concerns the gene GSTM1 and glycogen storage disease VI.