Among patients with α-3.7 Kb thalassemia, SLU+ patients had a lower RBC count, Hb, Hct, and MCHC concentration, in addition to higher MCV, MCH, LDH, total and indirect bilirubin, AST, and iron levels (p < 0.05) (Table S1). The gene discussed is GSTM1; the disease is thalassemia.