The proportions of hyperbilirubinemia (62.9% vs. 43.5%, p = 0.013), severe hemolysis (plasma Hb > 100 mg/dL) (30.6% vs. 2.4%, p < 0.001), and retroperitoneal bleeding (4.8% vs. 0, p < 0.001) were significantly higher in the G group than in the N group. This evidence concerns the gene GSTM1 and Hyperbilirubinemia.