GSTM1 and malaria: Of the 323 patients with complicated malaria, 121 (37.5%) required blood transfusion, 50 with Hb <5.0g/dL, 53 with Hb <7.0 g/dL and ≥5.0 g/dL and the remaining 18 with Hb <12.0 g/dL and ≥7.0 g/dL and blood cultures were performed in 137 patients.