In Table 2, clinical data of pediatric and adult hemoglobinopathy carriers [excluding: heterozygosity for HbC (N = 3), HbD (N = 1), HbE (N = 1), Hb Presbyterian (N = 1), hereditary persistence of fetal hemoglobin (HPFH) (N = 1)] diagnosed at the PAHAs of the University Hospital Essen are summarized. The gene discussed is GSTM1; the disease is hemoglobinopathy.